input with options: Read the following article and answer the question. Article: London used to be "foggy" for the same reason that cities like Beijing' or Chongqing are "foggy~ today. The "fog was in fact smog, a mixture of smoke and fog.  In other words, it was made by air pollution  In London, some of this pollution came from factories, but much of it came from the coal that people burnt in their houses to keep warm during the winter. By the 1950s, London's smog problem had become so bad that the-government decided to do something to clean the air.  A new law was made and nobody could bum coal in any British city. Within a few years, the air became much cleaner. There were no more " _ ".             . Many Chinese cities now face the same sort of' problem with air pollution that . London faced 40 0r 50 years ago.  However, this problem is more difficult for Chinese cities to solve   One reason is that more of the pollution comes from the factories, rather than from coal burnt in people's houses  If these factories were closed, this would harm the economy  and lots of people would lose their jobs. Another reason is that changing from coal to cleaner fuel  , like gas, is quite expensive. However, the air in many Chinese cities is becoming cleaner and cleaner, as the government and people pay more and more attention to cutting down pollution . As a result,there are fewer "pea-soupers" in Beijing than there used to be. . Question: What was the main reason for air pollution in London? Answer:
output: People burnt too much coal in the houses.

input with options: Read the following article and answer the question. Article: We are always using body language in our daily life. When we have a conversation with someone, we may be using more body language than words. However, the same body language may mean different things in different countries. That's why people sometimes do not understand each other correctly. Pointing to one part of the body can mean differently in different cultures. For example, in the USA people point to their heads when they think someone is clever. However, in Europe  it means 'He or she is stupid or something is wrong with his or her head'. In our Chinese culture, nodding our head up and down means 'yes' and shaking our head from side to side means 'no'. However, in parts of India, Greece and Turkey, it means just the opposite . In England or the USA, when you raise your hand and make a circle with the thumb and the second finger, it means 'You're all right or Everything is OK'. However, if we do this in France or Belgium, it means 'You're worth zero'. In Greece or Turkey, we should not make this gesture . Or we are thought to be very rude. The meaning of gestures can also change over time. In the 1960s, the V sign meant 'peace'. However, during World War II, it meant 'victory'. In Greece, it is a very insulting sign. Though the meaning of body language is different, there are some expressions having the same meaning throughout the world, such as smiling and crying. Question: In England, if people point to their heads it means they think someone is   _  . Answer:
output: stupid

input with options: Read the following article and answer the question. Article: Barack and Michelle Obama have two daughters: Malia, born in 1998, and Sasha, born in 2001. Before his inauguration, President Obama published an open letter to his daughters in Parade magazine, describing what he wants them and every child in America "to grow up in a world with no limits on your dreams and no achievements beyond your reach, and to grow into compassionate, committed women who will help build that world." While living in Chicago, they kept busy schedules. Soccer, dance and drama for Malia, gymnastics and tap for Sasha, piano and tennis for both. Malia and Sasha attended the private Sidwell Friends School in Washington, DC. The Obama girls began classes there on January 5, 2009. In his victory speech on the night of his election, President Obama repeated his promise to Sasha and Malia to get a dog to take with them to the White House. On April 12, 2009, it was reported that the Obamas had adopted a six-month-old Portuguese water dog given to them as a gift. The dog was named Bo by Malia and Sasha. Though Malia and Sasha Obama are the president's kids, it doesn't mean they'll be catered to. The girls are still required to do their chores. Besides bed-making, Malia and Sasha must clean up their rooms and keep on top of their homework. The Obamas want their girls to grow up in a "normal" way. Question: Which statement is NOT right according to the passage? Answer:
output: Obama published an open letter to his daughters in the newspaper.

input with options: Read the following article and answer the question. Article: I like to get up late, so my ideal school starts at 9: 00 a. m. It finishes at 3: 00 p. m. So we can do lots of sports after school. In my ideal school, there is a big dining hall. We have an hour for lunch. We can listen to music in the hall. We can have maths every day because I think maths is very interesting. The classes are very small. There are 15 students in each class. We can have a big library with a lot of _ books. We can also have a swimming pool. After school, we only have half an hour of homework every day. Every month, we can go on a school trip to a museum or a theater. Question: How many students are there in my class in my ideal school? Answer:
output:
Fifteen