input: OPTIONS:
- after school
- at weekends
- on school nights
- on school days Now, answer this question: Read the following article and answer the question. Article: You have been working hard to learn English. Do you know American kids are trying to learn Chinese? More than 60,000 American students now study Chinese. "Because of China's fast development, Chinese has become more useful, and more and more Americans begin to learn it, " said Scott McGinnis, a Washington language expert . For example, in 1999, only three schools in Chicago had Chinese lessons. This year more than 30 schools there have Chinese during school days. Last year China gave them 3,000 textbooks because they had done a good job. Although Chinese is becoming more and more popular, it is one of the most difficult languages to learn. Usually, an English speaker takes about 1,320 hours to become good at Chinese. He needs only 480 hours for French, Spanish or Italian. Question: The students at those schools in Chicago take Chinese lessons _ . Answer:
A:
output: on school days

Read the following article and answer the question. Article: In some science fiction movies, evil robots refuse to die, no matter how hard people fight back. Now science fiction has become science fact. For the first time, scientists have made a robot that can take a beating and keep on going. Scientists from Cornell University made the robot, which looks like a spider with four legs. Until now, even the most advanced robot was almost certain to break down when it was damaged . That is because its computer inside simply doesn't know how to make the machine work after its shape has changed. To deal with this problem, the scientists put eight motors and two sensors that read how the machine is working. They all give signals to the machine's software. Using this information, the computer can then figure out the machine's shape at any moment. The new technology is a big advance in robot-making, scientists say, and it's far from scary. It may someday help scientists create better artificial arms and legs and give new freedom to people who lose _ . It might also help scientists understand how people and animals figure out their own sense of place in space. "It has been difficult to design robots that can work well when the environment changes or when it's damaged," says Olaf Sporns of Indiana University in US. "With this work, we are nearer to solving this problem." Question: How do the sensors in the robot work? Answer:

OPTIONS:
- They can replace the computer when it's broken.
- They can find out where the damage comes from.
- They help the computer learn the robot's condition.
- They can send signals to the person who uses the robot.

Answer: They help the computer learn the robot's condition.

Problem: OPTIONS:
- Because his family is very poor.
- Because his parents don't give him any pocket money.
- Because he thinks it's not easy for his parents to make money.
- Because he is very mean.
Q: Read the following article and answer the question. Article: Frank is my friend. His family is rich. His parents always give him lots of pocket money. But Frank thinks his parents work very hard and it's not easy for them, so he always tries his best to save money. He has some good ways to do it. Frank likes reading. He has lots of books. He tells me he often buys books online, because they're cheaper. And when he has free time, he often goes to bookstores or libraries to do some reading. Frank has a bike. He usually goes to school by bike instead of taking a bus. Sometimes when it rains or snows, he walks. These two ways help Frank keep healthy and save some money. Frank brings a bottle of water to school every day. When other students drink juice, he enjoys his water. He thinks water is the cheapest but the best drink. Some students think Frank is mean. But I don't think so. I think he is right. What do you think of him? Question: Why does Frank tries his best to save money? Answer:
Answer: Because he thinks it's not easy for his parents to make money.

Problem:OPTIONS:
- sand
- water
- wind
- forests

Read the following article and answer the question. Article: In 1620,about half the USA was covered by forests .Today the forests have almost gone .A lot of good land has gone with them ,leaving only sand .China doesn't want to copy the USA's example.We're planting more and more tress .We've built the "Great Green Wall "of tress across northern pat of our country .The "Great Green Wall"is 7,000 kilometers long ,and between 400 and 1,700 kilometers wide .It will stop the wind from blowing the earth away .It will stop the sand from moving towards the rich farmland in the south .More "Great Green Wall "are needed .Trees must be grown all over the world. "Great Green Wall "will make the world better . ,. Question: A lot of good land has gone with _ . Answer:
****
A: forests

Read the following article and answer the question. Article: Hi,I'm Mimi. I'm four years old. I enjoy listening to music very much. I can sing and dance. This is a photo of me at my birthday party. I look very cool because it is my birthday today.It is favorite day of this year.I get up early and I'm ready for my birthday party.I have a lot of animal friends .iIcall them to my home on the phone. Then I take a bus to go shopping. I buy some food ,friut and drinks in the super market.At 7:0p.m,the party begins.All my friend asks me to sing some songs for them .I'm shy in front of them but I feel happy.Look! I'm playing guitar.They are listening tomy songs They clap their hands from time to time.at last ,all my friends walk to me and sing." Happy birthday" to me.How happy my birthday is !And my friends have a good time . Question: What time does the birthday party begin? Answer:
OPTIONS:
- 5:00 a.m
- 6:30 p.m
- 7:00 a.m
- 7:00p.m
7:00p.m

Read the following article and answer the question. Article: A leading biologist has found the angels and fairies that sit at top of Christmas trees did not get there under their own power. Prof Roger Wotton, from University College London, found that flight would be impossible for angels with arms and bird-like feathered wings. "Angels cannot take off and cannot use powered flight," said Prof Wotton. "They would need to be exposed to very high wind velocities at take off - such high winds that they would be blown away." Some the world's most famous religious paintings and architecture make most Americans believe in angels. The study found that 68 per cent of the 36,000 adults thought that angels and demons were at work in the world. According to the latest study, angels lack the powerful muscles which allow birds to beat their wings. Prof Wotton's paper explores why there are so many stories about angels. "Angels are very powerful religious icons for people with faith. Their similarity to humans adds to their power. At the same time, they have wings on them because they are more than human. They take messages to heaven and therefore have to fly." said the academic. Question: Which of the following is True? Answer:
OPTIONS:
- Angels can't fly because they lack the powerful muscles which allow birds to beat their wings.
- Most Americans don't believe in angels.
- Angels can take off and can use powered flight.
- Angels are not the same to the humans.

Answer:
Angels can't fly because they lack the powerful muscles which allow birds to beat their wings.