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It is easy for us to tell our friends from our enemies. But can other animals do the same? Elephants can! They can use their sense of vision and smell to tell the difference between people who pose a threat and those who do not. In Kenya, researchers found that elephants react differently to clothing worn by men of the...
[ "They attacked a man with the smell of new clothing.", "They needed time to relax when smelling something unfamiliar.", "They became anxious when they smelled Kamba-scented(...) clothing.", "They were frightened and ran away when they smelled their enemies." ]
D
null
train
mmlu
It is easy for us to tell our friends from our enemies. But can other animals do the same? Elephants can! They can use their sense of vision and smell to tell the difference between people who pose a threat and those who do not. In Kenya, researchers found that elephants react differently to clothing worn by men of the...
[ "Elephants use sight and smell to detect danger.", "Elephants attack people who wear red clothing.", "Scientists are now able to control elephants' emotions.", "Some Kenyan tribes understand elephants' emotions very well." ]
A
null
train
mmlu
It is easy for us to tell our friends from our enemies. But can other animals do the same? Elephants can! They can use their sense of vision and smell to tell the difference between people who pose a threat and those who do not. In Kenya, researchers found that elephants react differently to clothing worn by men of the...
[ "Elephants learn from their experience.", "Elephants have sharper sense of smell than sight.", "Elephants are more intelligent than other animals.", "Elephants tend to attack rather than escape when in danger." ]
A
null
train
mmlu
When school was out, I hurried to find my sister and get out of the schoolyard before seeing anybody in my class. But Barbara and her friends had beaten us to the playground entrance and they seemed to be waiting for us. Barbara said, "So now you' re in the A class. " She sounded impressed. "What' s the A class? ...
[ "impersonal", "enthusiastic", "reflective", "defensive" ]
A
null
train
mmlu
When school was out, I hurried to find my sister and get out of the schoolyard before seeing anybody in my class. But Barbara and her friends had beaten us to the playground entrance and they seemed to be waiting for us. Barbara said, "So now you' re in the A class. " She sounded impressed. "What' s the A class? ...
[ "all children of transient laborers were placed in the C class", "she had come from a small school", "the marking system confused her", "she was a poor reader" ]
D
null
train
mmlu
When school was out, I hurried to find my sister and get out of the schoolyard before seeing anybody in my class. But Barbara and her friends had beaten us to the playground entrance and they seemed to be waiting for us. Barbara said, "So now you' re in the A class. " She sounded impressed. "What' s the A class? ...
[ "tended to be lawbreakers", "were temporary residents", "were afraid of strangers", "had little schooling" ]
B
null
train
mmlu
When school was out, I hurried to find my sister and get out of the schoolyard before seeing anybody in my class. But Barbara and her friends had beaten us to the playground entrance and they seemed to be waiting for us. Barbara said, "So now you' re in the A class. " She sounded impressed. "What' s the A class? ...
[ "Wandering around the world.", "Never plant something.", "Make ginger ale in their house.", "Had been foreigners wherever they go." ]
C
null
train
mmlu
When school was out, I hurried to find my sister and get out of the schoolyard before seeing anybody in my class. But Barbara and her friends had beaten us to the playground entrance and they seemed to be waiting for us. Barbara said, "So now you' re in the A class. " She sounded impressed. "What' s the A class? ...
[ "Dislike", "Jealousy", "Apology", "Acceptance" ]
B
null
train
mmlu
If you bought some candy months ago but never ate it, how can you tell whether it's still safe to eat? The easiest way is to check the "expiration date " printed on the wrapper. If that date has already passed, you're likely to throw the candy away. But is that really necessary? According to a new report from the US N...
[ "reduce the waste of food", "show whether the food was fresh", "show the safety of food", "give a warming of food poisoning" ]
B
null
train
mmlu
If you bought some candy months ago but never ate it, how can you tell whether it's still safe to eat? The easiest way is to check the "expiration date " printed on the wrapper. If that date has already passed, you're likely to throw the candy away. But is that really necessary? According to a new report from the US N...
[ "Most customers understand what use-by date mean.", "Biscuits can't be eaten when not as crunchy as they were bought.", "\" Use-by dates\" have existed for more than 50 years.", "Even after their use-by dates pass, some food are still safe to eat." ]
D
null
train
mmlu
If you bought some candy months ago but never ate it, how can you tell whether it's still safe to eat? The easiest way is to check the "expiration date " printed on the wrapper. If that date has already passed, you're likely to throw the candy away. But is that really necessary? According to a new report from the US N...
[ "Most consumers often misunderstand use-by dates", "use-by dates are not helpful or reliable", "more consumers get worried about food safety", "the quality level of different foods changes differently" ]
A
null
train
mmlu
Honeymooning at Niagara Falls has become a standard for millions of newly married couples. In fact, Niagara Falls is often fondly called the Honeymoon Capital of the World. This title, however, did not happen overnight. There are various reasons that explain why so many people choose to get married surrounded by a wate...
[ "More and more newly married couples like it.", "Honeymooning there is a standard for millions of newly married couples.", "Many nobles got married there.", "The natural setting, its unique history, and the various activities and attractions attract newlyweds." ]
D
null
train
mmlu
Honeymooning at Niagara Falls has become a standard for millions of newly married couples. In fact, Niagara Falls is often fondly called the Honeymoon Capital of the World. This title, however, did not happen overnight. There are various reasons that explain why so many people choose to get married surrounded by a wate...
[ "It's less expensive than the other side.", "It provides a better view of both waterfalls.", "People can exchange their vows there while at the other side they can't.", "It combines old-fashioned romance with modern attractions." ]
B
null
train
mmlu
Honeymooning at Niagara Falls has become a standard for millions of newly married couples. In fact, Niagara Falls is often fondly called the Honeymoon Capital of the World. This title, however, did not happen overnight. There are various reasons that explain why so many people choose to get married surrounded by a wate...
[ "Vice President Aaron Burr.", "French Prince Jerome Bonaparte.", "Theodosia Burr, the daughter of Aaron Burr.", "Hollywood star Marilyn Monroe." ]
C
null
train
mmlu
Are you a problem shopper? The answer is "Yes" , if you or someone else thinks that you sometimes get carried away with shopping .In other words ,do you or does someone else think you are occupied in extreme shopping ? If people have regrets later about their shopping , or have an "out-of-control" feeling about the qua...
[ "Those who cannot control the amount of credit they use.", "Those who just walk around the shopping malls.", "Those who are occupied in too much shopping.", "Those who feel sorry for their shopping." ]
B
null
train
mmlu
Are you a problem shopper? The answer is "Yes" , if you or someone else thinks that you sometimes get carried away with shopping .In other words ,do you or does someone else think you are occupied in extreme shopping ? If people have regrets later about their shopping , or have an "out-of-control" feeling about the qua...
[ "The awareness of how market forces work.", "The desire for status ,power ,beauty or success.", "Boredom, emptiness ,tension ,fear or unhappiness in people's life.", "Long-time bad feelings of anxiety ,pain and shame." ]
A
null
train
mmlu
Are you a problem shopper? The answer is "Yes" , if you or someone else thinks that you sometimes get carried away with shopping .In other words ,do you or does someone else think you are occupied in extreme shopping ? If people have regrets later about their shopping , or have an "out-of-control" feeling about the qua...
[ "Never going to the shopping malls because there are many tricks.", "Applying for a credit card before we go shopping.", "Making the shopping time as short as possible.", "Making a shopping list before we go shopping." ]
D
null
train
mmlu
Are you a problem shopper? The answer is "Yes" , if you or someone else thinks that you sometimes get carried away with shopping .In other words ,do you or does someone else think you are occupied in extreme shopping ? If people have regrets later about their shopping , or have an "out-of-control" feeling about the qua...
[ "inform the shopping malls how to attract more shoppers", "provide solutions to the problem shopping.", "scold the problem shoppers", "tell a shopping story" ]
B
null
train
mmlu
The structure and workings of the university are ever changing. The university of the past is not like the university of the present and the university of the present will not be like the university of the future. This "adaptation" to the times is what can make some universities great or make some universities among th...
[ "What its structure is like.", "How its workings are run.", "What times it belongs to.", "Whether it'll adjust itself." ]
D
null
train
mmlu
The structure and workings of the university are ever changing. The university of the past is not like the university of the present and the university of the present will not be like the university of the future. This "adaptation" to the times is what can make some universities great or make some universities among th...
[ "They were run in a fixed way.", "They ignored the needs of society.", "They had lower standards of admission.", "Professors lacked interaction with students." ]
C
null
train
mmlu
The structure and workings of the university are ever changing. The university of the past is not like the university of the present and the university of the present will not be like the university of the future. This "adaptation" to the times is what can make some universities great or make some universities among th...
[ "Positive.", "Doubtful.", "Passive.", "Uncertain." ]
A
null
train
mmlu
The structure and workings of the university are ever changing. The university of the past is not like the university of the present and the university of the present will not be like the university of the future. This "adaptation" to the times is what can make some universities great or make some universities among th...
[ "Universities in the future.", "The standards of schools.", "The admission into some colleges.", "Other changes of teaching methods." ]
A
null
train
mmlu
An upper class British lady once declared: " Anyone seen on a bus after the age of 30 has been a failure in life." This may sound arrogant and ignorant. Unfortunately, there are still people thinking that way. Some wealthy folk in the West look down on buses and boast about how many years it has been since they last t...
[ "It's convenient to drive around the city.", "They cannot count on buses.", "It costs them much money to take trains.", "Driving cars has little effect on environment." ]
D
null
train
mmlu
An upper class British lady once declared: " Anyone seen on a bus after the age of 30 has been a failure in life." This may sound arrogant and ignorant. Unfortunately, there are still people thinking that way. Some wealthy folk in the West look down on buses and boast about how many years it has been since they last t...
[ "3.", "4.", "5.", "6." ]
B
null
train
mmlu
Ed Viesturs grew up in Rockford, Illinois, where the tallest thing on the horizon was the water tower. But on Thursday, Viesturs became the only American to climb to the top of the world's 14 highest mountains. His last hike was up Mount Annapurna, in Asia's snowcapped Himalayas. At 26,545 feet, its peak is the 10th hi...
[ "He has succeeded in climbing to the world's 14th highest mountain.", "He has been to the top of the world's 14 highest mountains.", "He has become the first to climb to the height of 26,545feet.", "He has become the first man to climb to the top of 14 highest mountains in the world." ]
B
null
train
mmlu
Ed Viesturs grew up in Rockford, Illinois, where the tallest thing on the horizon was the water tower. But on Thursday, Viesturs became the only American to climb to the top of the world's 14 highest mountains. His last hike was up Mount Annapurna, in Asia's snowcapped Himalayas. At 26,545 feet, its peak is the 10th hi...
[ "mountain climbing is a dangerous sport", "mountains should be regarded as living creatures", "mountain climbing needs more skills than physical energy", "those who like mountain climbing won't stop climbing" ]
B
null
train
mmlu
Ed Viesturs grew up in Rockford, Illinois, where the tallest thing on the horizon was the water tower. But on Thursday, Viesturs became the only American to climb to the top of the world's 14 highest mountains. His last hike was up Mount Annapurna, in Asia's snowcapped Himalayas. At 26,545 feet, its peak is the 10th hi...
[ "Stopping climbing and staying with his family.", "Climbing to the top of the world's 14 tallest mountains again.", "Climbing another one of the highest mountains.", "Writing down the experiences about his adventure." ]
C
null
train
mmlu
Rules for the University Entrance Examination *You must be at the examination center ten minutes before the examination starts. If you are more than ten minutes late, you may not enter the examination center. The examination takes place at the same time in different states. *You must have proof of your name and grade a...
[ "A local exam.", "A final exam.", "A college exam.", "A national exam." ]
D
null
train
mmlu
Rules for the University Entrance Examination *You must be at the examination center ten minutes before the examination starts. If you are more than ten minutes late, you may not enter the examination center. The examination takes place at the same time in different states. *You must have proof of your name and grade a...
[ "Related material.", "Proof of yourself.", "A cell phone.", "A dictionary." ]
B
null
train
mmlu
Rules for the University Entrance Examination *You must be at the examination center ten minutes before the examination starts. If you are more than ten minutes late, you may not enter the examination center. The examination takes place at the same time in different states. *You must have proof of your name and grade a...
[ "Take some notes carefully.", "Leave the room immediately.", "Remain in your seat and check again.", "Raise your hand to inform your teacher." ]
C
null
train
mmlu
Rules for the University Entrance Examination *You must be at the examination center ten minutes before the examination starts. If you are more than ten minutes late, you may not enter the examination center. The examination takes place at the same time in different states. *You must have proof of your name and grade a...
[ "Pencils.", "Food and drink.", "Extra paper.", "Calculators." ]
C
null
train
mmlu
Dear Aunty, I work at a supermarket, and another girl and I share tasks we must finish before leaving. But she takes half an hour to do something I can do in ten minutes. She always has a story to tell me and stops working when she does. My boss is angry at both of us, but It's not my fault. I don't want to rat on her,...
[ "follow the second advice", "invite the boss to listen to the girl", "stop working or do other things", "report to the boss on time" ]
A
null
train
mmlu
Dear Aunty, I work at a supermarket, and another girl and I share tasks we must finish before leaving. But she takes half an hour to do something I can do in ten minutes. She always has a story to tell me and stops working when she does. My boss is angry at both of us, but It's not my fault. I don't want to rat on her,...
[ "buy some pesos", "become an expert on stocks", "get ways to grow money", "study economics as his major" ]
C
null
train
mmlu
Dear Aunty, I work at a supermarket, and another girl and I share tasks we must finish before leaving. But she takes half an hour to do something I can do in ten minutes. She always has a story to tell me and stops working when she does. My boss is angry at both of us, but It's not my fault. I don't want to rat on her,...
[ "start investing", "have a saving plan", "study stock markets", "master market reading" ]
B
null
train
mmlu
Dear Aunty, I work at a supermarket, and another girl and I share tasks we must finish before leaving. But she takes half an hour to do something I can do in ten minutes. She always has a story to tell me and stops working when she does. My boss is angry at both of us, but It's not my fault. I don't want to rat on her,...
[ "an elder kind woman", "a lady in the community", "a famous singer", "a name of a columnist" ]
D
null
train
mmlu
Most kids go to school during the day and come home to their families or caregivers at night.Sometimes kids can't go home every night so they board or live at school during term-time. Whatever the reason for going to boarding school, living with a group of people is very different from living with your family.You have ...
[ "1earn to stay with their hosts", "entertain and protect others", "obey the rules of the school", "take trips to and from school" ]
C
null
train
mmlu
Most kids go to school during the day and come home to their families or caregivers at night.Sometimes kids can't go home every night so they board or live at school during term-time. Whatever the reason for going to boarding school, living with a group of people is very different from living with your family.You have ...
[ "You should complain about the school food.", "You should be active in building new friendships.", "You can keep your own space and privacy.", "You must do sports on a daily basis." ]
B
null
train
mmlu
Most kids go to school during the day and come home to their families or caregivers at night.Sometimes kids can't go home every night so they board or live at school during term-time. Whatever the reason for going to boarding school, living with a group of people is very different from living with your family.You have ...
[ "Going to Boarding School", "Kids' School Life", "Reasons for Boarding at School", "Tips for School Students" ]
A
null
train
mmlu
The summer I was ten, my mother decided to bring us to the world of art. My brother and I were not very excited when we realized what my mother meant. What she meant was not that we could take drawing classes or painting classes but that we would have to spend one afternoon a week with her at the Fine Arts Museum. Befo...
[ "take them to visit the museum", "introduce them to the world of art", "ask them to read about artists", "show them different painting styles" ]
B
null
train
mmlu
The summer I was ten, my mother decided to bring us to the world of art. My brother and I were not very excited when we realized what my mother meant. What she meant was not that we could take drawing classes or painting classes but that we would have to spend one afternoon a week with her at the Fine Arts Museum. Befo...
[ "She came to feel her mother's love.", "She liked many paintings.", "She hardly enjoyed herself.", "She could understand the pictures of fat babies." ]
C
null
train
mmlu
The summer I was ten, my mother decided to bring us to the world of art. My brother and I were not very excited when we realized what my mother meant. What she meant was not that we could take drawing classes or painting classes but that we would have to spend one afternoon a week with her at the Fine Arts Museum. Befo...
[ "One of Mary's paintings.", "A strange way of painting.", "Artists in the Middle Ages.", "Her mother's instruction." ]
A
null
train
mmlu
The summer I was ten, my mother decided to bring us to the world of art. My brother and I were not very excited when we realized what my mother meant. What she meant was not that we could take drawing classes or painting classes but that we would have to spend one afternoon a week with her at the Fine Arts Museum. Befo...
[ "the importance of curiosity", "the effect of art", "the value of learning", "the power of family education" ]
B
null
train
mmlu
The summer I was ten, my mother decided to bring us to the world of art. My brother and I were not very excited when we realized what my mother meant. What she meant was not that we could take drawing classes or painting classes but that we would have to spend one afternoon a week with her at the Fine Arts Museum. Befo...
[ "visit some art museums", "go to Egypt for a visit", "take drawing or painting classes", "play with their friends." ]
D
null
train
mmlu
Our 16-year-old daughter started to smoke last Christmas. It killed me to see that lovely girl with a cigarette in her mouth. I told her how I felt. Martha continued to smoke, saying, "It's my life," and so on. I told her if she didn't stop smoking, I wouldn't send her to college. She agreed to give it up. Last night ...
[ "Because her daughter failed to go to college.", "Because her daughter tried to kill her.", "Because her daughter promised to smoke no more.", "Because her daughter got used to smoking." ]
D
null
train
mmlu
Our 16-year-old daughter started to smoke last Christmas. It killed me to see that lovely girl with a cigarette in her mouth. I told her how I felt. Martha continued to smoke, saying, "It's my life," and so on. I told her if she didn't stop smoking, I wouldn't send her to college. She agreed to give it up. Last night ...
[ "refuse to give Martha any money", "not be Martha's mother", "refuse to pay for Martha's college education", "not let Martha teach children" ]
C
null
train
mmlu
Our 16-year-old daughter started to smoke last Christmas. It killed me to see that lovely girl with a cigarette in her mouth. I told her how I felt. Martha continued to smoke, saying, "It's my life," and so on. I told her if she didn't stop smoking, I wouldn't send her to college. She agreed to give it up. Last night ...
[ "She failed to keep her promise.", "She kept her promise.", "She managed to give up smoking.", "She broke something her mother gave her." ]
A
null
train
mmlu
Our 16-year-old daughter started to smoke last Christmas. It killed me to see that lovely girl with a cigarette in her mouth. I told her how I felt. Martha continued to smoke, saying, "It's my life," and so on. I told her if she didn't stop smoking, I wouldn't send her to college. She agreed to give it up. Last night ...
[ "Martha was usually a stupid girl", "though Martha's father received high pay, it was not enough for their two girls' college education", "as everything was becoming more and more expensive, the two girls had to work hard to pay for their education", "she liked Martha's sister but hated Martha" ]
B
null
train
mmlu
KATHMANDU, Nepal (CNN) - Nepal has given its security personnel permission to shoot pro-Tibet demonstrators during China's Olympic flame climb to Mount Everest's summit early next month. "About 25 soldiers and policemen have established camps on the mountain and they have been ordered to use force if necessary to stop ...
[ "April 28", "May 12", "June 10", "May 7" ]
D
null
train
mmlu
KATHMANDU, Nepal (CNN) - Nepal has given its security personnel permission to shoot pro-Tibet demonstrators during China's Olympic flame climb to Mount Everest's summit early next month. "About 25 soldiers and policemen have established camps on the mountain and they have been ordered to use force if necessary to stop ...
[ "once", "twice", "three times", "as many times as they can" ]
B
null
train
mmlu
KATHMANDU, Nepal (CNN) - Nepal has given its security personnel permission to shoot pro-Tibet demonstrators during China's Olympic flame climb to Mount Everest's summit early next month. "About 25 soldiers and policemen have established camps on the mountain and they have been ordered to use force if necessary to stop ...
[ "India", "Nepal", "Tanzania", "France" ]
C
null
train
mmlu
KATHMANDU, Nepal (CNN) - Nepal has given its security personnel permission to shoot pro-Tibet demonstrators during China's Olympic flame climb to Mount Everest's summit early next month. "About 25 soldiers and policemen have established camps on the mountain and they have been ordered to use force if necessary to stop ...
[ "negative", "positive", "ambiguous", "indifferent" ]
B
null
train
mmlu
Tuesday Wednesday Thursday Friday Saturday Hi 56degF/13degC 56degF/13degC 59degF/15degC 58degF/14degC 54degF/12degC Lo 42degF/6degC 47degF/8degC 50degF/10degC 46degF/8degC 45degF/7degC Mostly sunny Sunny to partly cloudy Some sunshine giving way to clouds A couple of morning showers ...
[ "47degC", "43degC", "13degC", "8degC" ]
D
null
train
mmlu
Tuesday Wednesday Thursday Friday Saturday Hi 56degF/13degC 56degF/13degC 59degF/15degC 58degF/14degC 54degF/12degC Lo 42degF/6degC 47degF/8degC 50degF/10degC 46degF/8degC 45degF/7degC Mostly sunny Sunny to partly cloudy Some sunshine giving way to clouds A couple of morning showers ...
[ "10 miles", "15 kilometers", "30.27 inches", "43 meters" ]
A
null
train
mmlu
Tuesday Wednesday Thursday Friday Saturday Hi 56degF/13degC 56degF/13degC 59degF/15degC 58degF/14degC 54degF/12degC Lo 42degF/6degC 47degF/8degC 50degF/10degC 46degF/8degC 45degF/7degC Mostly sunny Sunny to partly cloudy Some sunshine giving way to clouds A couple of morning showers ...
[ "Monday", "Wednesday", "Friday", "Saturday" ]
C
null
train
mmlu
Tuesday Wednesday Thursday Friday Saturday Hi 56degF/13degC 56degF/13degC 59degF/15degC 58degF/14degC 54degF/12degC Lo 42degF/6degC 47degF/8degC 50degF/10degC 46degF/8degC 45degF/7degC Mostly sunny Sunny to partly cloudy Some sunshine giving way to clouds A couple of morning showers ...
[ "Chicago", "New York", "Tokyo", "San Francisco" ]
C
null
train
mmlu
My parents were in a huge argument, and I was really upset about it. I didn't know who I should talk with about how I was feeling. So I asked Mom to allow me to stay the night at my best friend's house. Though I knew I wouldn't tell her about my parents' situation, I was looking forward to getting out of the house. I w...
[ "I was angry about my parents' quarrel", "I found nobody to share my feelings with", "I wanted to escape from the dark house", "I planned to tell my friend about my trouble" ]
B
null
train
mmlu
My parents were in a huge argument, and I was really upset about it. I didn't know who I should talk with about how I was feeling. So I asked Mom to allow me to stay the night at my best friend's house. Though I knew I wouldn't tell her about my parents' situation, I was looking forward to getting out of the house. I w...
[ "he could discuss the problem with me", "he had not seen me for a long time", "he was afraid of darkness", "he felt quite lonely" ]
A
null
train
mmlu
My parents were in a huge argument, and I was really upset about it. I didn't know who I should talk with about how I was feeling. So I asked Mom to allow me to stay the night at my best friend's house. Though I knew I wouldn't tell her about my parents' situation, I was looking forward to getting out of the house. I w...
[ "The grandchild was eager to leave.", "They would have more chats.", "The lights would go out again.", "It would no longer be dark." ]
B
null
train
mmlu
Upon entering college, Yang Yi was uncertain about a lot of things. However, the 19-year-old international economics and trade student was certain about one thing: She wanted to participate in animal welfare efforts. "I'm .always a nature and animal lover," she said. She joined the environmental protection association ...
[ "She majored in a relevant field.", "She wanted to protect nature and animals.", "She was uncertain about her life.", "She intended to know about animal welfare." ]
B
null
train
mmlu
Upon entering college, Yang Yi was uncertain about a lot of things. However, the 19-year-old international economics and trade student was certain about one thing: She wanted to participate in animal welfare efforts. "I'm .always a nature and animal lover," she said. She joined the environmental protection association ...
[ "They shelter them with old clothes.", "They feed human food to them.", "They train them for entertainment.", "They donate money to the association." ]
A
null
train
mmlu
Upon entering college, Yang Yi was uncertain about a lot of things. However, the 19-year-old international economics and trade student was certain about one thing: She wanted to participate in animal welfare efforts. "I'm .always a nature and animal lover," she said. She joined the environmental protection association ...
[ "Enjoyable.", "Doubtful.", "Hopeful.", "Awful." ]
C
null
train
mmlu
Does it drive you crazy that your cell phone needs to be frequently charged for hours? A team of scientists led by professor Harold Kung at Northwestern University in the US may have solved your problem. They developed a lithium ion batery that holds 10 times as much power and charges 10 times more quickly than stand...
[ "They are not very stable.", "They cannot hold enough silicon.", "They have limited energy capacity.", "The space between the graphene sheets is too big." ]
C
null
train
mmlu
Does it drive you crazy that your cell phone needs to be frequently charged for hours? A team of scientists led by professor Harold Kung at Northwestern University in the US may have solved your problem. They developed a lithium ion batery that holds 10 times as much power and charges 10 times more quickly than stand...
[ "fixed silicon between the graphene sheets", "created tiny holes in the graphene sheets", "made the graphene sheets in special shapes", "used a special chemical process to make more efficient graphene sheets" ]
B
null
train
mmlu
Does it drive you crazy that your cell phone needs to be frequently charged for hours? A team of scientists led by professor Harold Kung at Northwestern University in the US may have solved your problem. They developed a lithium ion batery that holds 10 times as much power and charges 10 times more quickly than stand...
[ "current rechargeable batteries usually last for 150 charges", "after one year's use, the newly developed batteries are less powerful", "batteries with more lithium ions are more powerful and charge faster", "further experiments may focus on improving the shape of graphene sheets" ]
B
null
train
mmlu
Different countries have different customs. When you travel to another countries, please follow their customs, just as the saying goes, " _ ." Very often people who travel to the United States forget to tip. It is usual to tip _ who help carry your bags, taxi drivers and waiters. Waiters expect to get a 15% tip on the ...
[ "porters", "waiters", "teachers", "taxi drivers" ]
C
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train
mmlu
Different countries have different customs. When you travel to another countries, please follow their customs, just as the saying goes, " _ ." Very often people who travel to the United States forget to tip. It is usual to tip _ who help carry your bags, taxi drivers and waiters. Waiters expect to get a 15% tip on the ...
[ "In Spain, People usually have dinner very early.", "In England, It's a not polite to talk about the weather.", "In Arab countries, men kiss one another on the cheek.", "In Japan you should not read the business card as soon as you get it." ]
C
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train
mmlu
Different countries have different customs. When you travel to another countries, please follow their customs, just as the saying goes, " _ ." Very often people who travel to the United States forget to tip. It is usual to tip _ who help carry your bags, taxi drivers and waiters. Waiters expect to get a 15% tip on the ...
[ "How to Tip", "Body Language", "When to Have Dinne", "Advice to International Travelers" ]
D
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train
mmlu
Do you know how to be happy? Here are six ways for you to find more pleasure in your life. Play that song you love so much. As a preschooler can tell you, repetition can lead to pleasure. When you experience something more than once, you notice more details about it each time, and it increases your enjoyment. That's wh...
[ "helps us save some money.", "spare time for other activities", "increase our experience of happiness", "give us more time to consider buying things." ]
C
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train
mmlu
Do you know how to be happy? Here are six ways for you to find more pleasure in your life. Play that song you love so much. As a preschooler can tell you, repetition can lead to pleasure. When you experience something more than once, you notice more details about it each time, and it increases your enjoyment. That's wh...
[ "Repetition results in pleasure.", "Smiles fool others' mood.", "Animals add to your stress.", "Spending time outside harms your spirit." ]
A
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train
mmlu
Birds in cities are damaging their health by trying to sing above the noise of urban life. New research shows that male birds are trying to compete against traffic and city sounds.They are now singing louder and at higher frequencies,which could harm their vocal cords .Some birds are choosing to sing at night inste...
[ "they want to attract more birds of opposite sex", "they are more likely to be discovered by their family", "they can't adapt to the loud noises during the daytime", "they have to frighten their enemy away" ]
C
null
train
mmlu
Birds in cities are damaging their health by trying to sing above the noise of urban life. New research shows that male birds are trying to compete against traffic and city sounds.They are now singing louder and at higher frequencies,which could harm their vocal cords .Some birds are choosing to sing at night inste...
[ "recognize each other", "communicate with each other", "1ive with each other", "compete against each other" ]
B
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train
mmlu
Birds in cities are damaging their health by trying to sing above the noise of urban life. New research shows that male birds are trying to compete against traffic and city sounds.They are now singing louder and at higher frequencies,which could harm their vocal cords .Some birds are choosing to sing at night inste...
[ "Monday nights", "Wednesday afternoons", "Saturday Evenings", "Friday mornings" ]
D
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train
mmlu
Birds in cities are damaging their health by trying to sing above the noise of urban life. New research shows that male birds are trying to compete against traffic and city sounds.They are now singing louder and at higher frequencies,which could harm their vocal cords .Some birds are choosing to sing at night inste...
[ "the harm done to man's health", "the dying out of a species", "the serious damage to the bird's vocal cords", "the decrease of the birth rate of a bird group" ]
B
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train
mmlu
I'm seventeen. I had worked as a box boy at a supermarket in Los Angeles. People came to the counter and you put things in their bags for them and carried things to their cars. It was hard work. While working, you wear a plate with your name on it. I once met someone I knew years ago. I remembered his name and said, "M...
[ "How Hard Life Is for Box Boys", "Getting along with Customers", "Why I Gave up My Job", "The Art of Taking Tips" ]
C
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train
mmlu
I'm seventeen. I had worked as a box boy at a supermarket in Los Angeles. People came to the counter and you put things in their bags for them and carried things to their cars. It was hard work. While working, you wear a plate with your name on it. I once met someone I knew years ago. I remembered his name and said, "M...
[ "customers only gave small tips", "some customers had strange ideas about tipping", "the store didn't allow the box boys to take tips", "he didn't want to fight with the customers" ]
C
null
train
mmlu
Thanks to science, industry and moral philosophy, mankind's steps were at last guided up the right path in the past century. The 19th century of steam was about to give way to the 20th century of oil and electricity. Charles Darwin's theory of evolution, only 41 years old in 1900, provided a scientific basis for the id...
[ "great changes occurred between the 19th century and the 20th century", "the world knew nothing about science, industry and moral philosophy", "mankind came to realize there was not a change in the 19th century", "Darwin, the builder of the theory of evolution, was in his forties" ]
A
null
train
mmlu
Thanks to science, industry and moral philosophy, mankind's steps were at last guided up the right path in the past century. The 19th century of steam was about to give way to the 20th century of oil and electricity. Charles Darwin's theory of evolution, only 41 years old in 1900, provided a scientific basis for the id...
[ "know that the progress was made only by scientists", "enjoy their life more comfortably and conveniently", "tell that a mankind killing was about to take place", "make their dreams of a better life and a better world come true" ]
B
null
train
mmlu
Thanks to science, industry and moral philosophy, mankind's steps were at last guided up the right path in the past century. The 19th century of steam was about to give way to the 20th century of oil and electricity. Charles Darwin's theory of evolution, only 41 years old in 1900, provided a scientific basis for the id...
[ "Because it destroyed a generation of Europeans.", "Because it was not only a war but a human disaster.", "Because it was followed by the other world war.", "Because it was influenced by new ideas." ]
C
null
train
mmlu
Thanks to science, industry and moral philosophy, mankind's steps were at last guided up the right path in the past century. The 19th century of steam was about to give way to the 20th century of oil and electricity. Charles Darwin's theory of evolution, only 41 years old in 1900, provided a scientific basis for the id...
[ "Hitler came into power", "Japan attached Pearl Harbor.", "Poland was attacked by Germany.", "USA had not planned to go into the war" ]
D
null
train
mmlu
Thanks to science, industry and moral philosophy, mankind's steps were at last guided up the right path in the past century. The 19th century of steam was about to give way to the 20th century of oil and electricity. Charles Darwin's theory of evolution, only 41 years old in 1900, provided a scientific basis for the id...
[ "Citizenship.", "Invention.", "Ruins.", "Psychoanalysis." ]
D
null
train
mmlu
It was December 25, 1914, only 5 months into World War I. German, British, and French soldiers, already sick and tired of the senseless killing, disobeyed their superiors and started socialising with "the enemy" along two-thirds of the Western Front. German troops held up Christmas trees with signs, "Merry Christmas". ...
[ "they couldn't bear the meaningless killing", "it was the best way to avoid being killed", "they feared that they would be caught", "their enemies were from similar backgrounds" ]
A
null
train
mmlu
It was December 25, 1914, only 5 months into World War I. German, British, and French soldiers, already sick and tired of the senseless killing, disobeyed their superiors and started socialising with "the enemy" along two-thirds of the Western Front. German troops held up Christmas trees with signs, "Merry Christmas". ...
[ "They sent the soldiers' loved ones to prison.", "They moved the two groups of soldiers further apart.", "They increased the number of officers to control the soldiers.", "They warned the soldiers that they would face severe punishment." ]
D
null
train
mmlu
It was December 25, 1914, only 5 months into World War I. German, British, and French soldiers, already sick and tired of the senseless killing, disobeyed their superiors and started socialising with "the enemy" along two-thirds of the Western Front. German troops held up Christmas trees with signs, "Merry Christmas". ...
[ "are not trustworthy under stress", "are naturally aggressive and war-like", "are basically caring and kindhearted", "will always do what is in their own self-interest" ]
C
null
train
mmlu
Fifty years ago, Martin Luther King dreamed of an America that would one day deliver on its promise of equality for all of its citizens, black as well as white. Today, Facebook founder Mark Zuckerberg has a dream, too: he wants to provide Internet access to the world's five billion people who do not now have it. But th...
[ "Attracting more users for his social network.", "Making people without Internet enjoy the benefits of it.", "Establishing connections will affluent people and organizations.", "Helping poor people being available to necessary cure." ]
B
null
train
mmlu
Fifty years ago, Martin Luther King dreamed of an America that would one day deliver on its promise of equality for all of its citizens, black as well as white. Today, Facebook founder Mark Zuckerberg has a dream, too: he wants to provide Internet access to the world's five billion people who do not now have it. But th...
[ "Zuckerberg, several major information-technology companies and nonprofit organizations", "nonprofit organizations and a person working to provide family-planning advice to poor people", "seven major information-technology companies, nonprofit organization and national communities", "some information-technolo...
D
null
train
mmlu
Earthquake in Japan.Donald Trump is accused of planting story about actress's height after she rejected him. Mexico arrests ex-police chief in case of 43 missing students. Do you really need to know all these things? Three years ago, I began an experiment. I stopped reading all newspapers and magazines. Televisions and...
[ "He was in constant fear.", "He enjoyed it very much.", "He had a better vision about life.", "He missed his friends and relatives." ]
A
null
train
mmlu
Earthquake in Japan.Donald Trump is accused of planting story about actress's height after she rejected him. Mexico arrests ex-police chief in case of 43 missing students. Do you really need to know all these things? Three years ago, I began an experiment. I stopped reading all newspapers and magazines. Televisions and...
[ "represents a competitive advantage", "offers a mental map of the world", "leads to a loss of productivity", "brings journalists' income up" ]
C
null
train
mmlu
Earthquake in Japan.Donald Trump is accused of planting story about actress's height after she rejected him. Mexico arrests ex-police chief in case of 43 missing students. Do you really need to know all these things? Three years ago, I began an experiment. I stopped reading all newspapers and magazines. Televisions and...
[ "To offer tips on choosing news.", "To advocate giving up reading news.", "To share experiences on avoiding news.", "To criticize media's misleading choice of news." ]
B
null
train
mmlu
Across the globe, single parent homes are on the rise. In the US, the 2000 census showed 24.8 million, or nearly 24 percent of the nation's 105.5 million households, were traditional two-parent homes. By comparison, 9.8 million households, or 9 percent of all US households were headed by an adult raising a child alon...
[ "UK.", "Australia.", "America.", "Belgium." ]
A
null
train
mmlu
Across the globe, single parent homes are on the rise. In the US, the 2000 census showed 24.8 million, or nearly 24 percent of the nation's 105.5 million households, were traditional two-parent homes. By comparison, 9.8 million households, or 9 percent of all US households were headed by an adult raising a child alon...
[ "The nearby family members have a favourable opinion.", "A lone parent is well off enough to support his /her children.", "A lot of problems have arisen in two-parent families.", "We cannot get enough proving information from the text." ]
D
null
train
mmlu
Across the globe, single parent homes are on the rise. In the US, the 2000 census showed 24.8 million, or nearly 24 percent of the nation's 105.5 million households, were traditional two-parent homes. By comparison, 9.8 million households, or 9 percent of all US households were headed by an adult raising a child alon...
[ "It will somewhat limit the growing population of younger generation.", "Governments should take actions about the social problems brought about by it.", "Single parent families are not looked down upon in any country mentioned here.", "Generally speaking, the single parents needn't worry since they are highl...
B
null
train
mmlu
Having a hobby helps to make you a more interesting person and gives you something fascinating to talk about with others. It can also help you to avoid feeling bored and often provides the opportunity to meet new people with similar interests. Learning something new is always good for keeping the mind alert and active,...
[ "teachushowtofindahobby", "explainhowahobbyisdeveloped", "introducetheimportanceofahobby", "provetheeffectofahobbyonaperson" ]
A
null
train
mmlu
After a 15-year ban on the sale of fireworks in Beijing, Kang Guoliang, 51, was able to start his old trade again yesterday. As a salesman in Xinhui store in Dongcheng District, he is happy about the increasing number of buying fireworks wrapped in red paper -- a color standing for happiness and good luck. "Fireworks a...
[ "description", "argument", "advertisement", "news report" ]
D
null
train
mmlu
After a 15-year ban on the sale of fireworks in Beijing, Kang Guoliang, 51, was able to start his old trade again yesterday. As a salesman in Xinhui store in Dongcheng District, he is happy about the increasing number of buying fireworks wrapped in red paper -- a color standing for happiness and good luck. "Fireworks a...
[ "Beijing fireworks sales start after a 15-year ban.", "People go to buy fireworks and firecrackers every where in Beijing.", "Beijing residents all welcome the return of firecrackers.", "Many stores began to sell fireworks and firecrackers." ]
A
null
train
mmlu
After a 15-year ban on the sale of fireworks in Beijing, Kang Guoliang, 51, was able to start his old trade again yesterday. As a salesman in Xinhui store in Dongcheng District, he is happy about the increasing number of buying fireworks wrapped in red paper -- a color standing for happiness and good luck. "Fireworks a...
[ "every Spring Festival falls on February 18", "Beijing residents can set off fireworks everywhere .", "fireworks are allowed to be sold because people like them.", "from February 19 to March 4, Beijing residents can set off fireworks twenty four hours every day." ]
C
null
train
mmlu
After a 15-year ban on the sale of fireworks in Beijing, Kang Guoliang, 51, was able to start his old trade again yesterday. As a salesman in Xinhui store in Dongcheng District, he is happy about the increasing number of buying fireworks wrapped in red paper -- a color standing for happiness and good luck. "Fireworks a...
[ "Negative", "Not mentioned", "Positive", "Satisfactory" ]
B
null
train
mmlu
Come for Dinner by Leslie Revsin Make every meal a feast and every moment with loved ones an occasion with Come for Dinner. Revsin, the former owner and chef of Manhattan's Restaurant Leslie, offers a collection of over 150 recipes designed for small get-togethers of friends and family. There are various ethnic dishes ...
[ "how to make picnics on the beach", "how to repair your surfboard", "how to make Spanish wines", "how to satisfy your taste at home" ]
A
null
train
mmlu
Come for Dinner by Leslie Revsin Make every meal a feast and every moment with loved ones an occasion with Come for Dinner. Revsin, the former owner and chef of Manhattan's Restaurant Leslie, offers a collection of over 150 recipes designed for small get-togethers of friends and family. There are various ethnic dishes ...
[ "Leslie Revsin.", "Linda Everett.", "Sidney Escowitz.", "Olivier Said." ]
C
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train
mmlu
Come for Dinner by Leslie Revsin Make every meal a feast and every moment with loved ones an occasion with Come for Dinner. Revsin, the former owner and chef of Manhattan's Restaurant Leslie, offers a collection of over 150 recipes designed for small get-togethers of friends and family. There are various ethnic dishes ...
[ "people", "traveling", "cooking", "sports" ]
C
null
train
mmlu
When international aid is given, steps must be taken to ensure that the aid reaches the people for whom it is intended. The way to achieve this may not be simple. It is very difficult for a nation to give help directly to people in another nation. The United Nations Organization (UNO) could undertake to direct the dis...
[ "By solving the cost problems", "By solving the transportation problems", "By setting up a body of devoted people in every country.", "By relying on the direct distribution of the UNO." ]
C
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train
mmlu