input: Please answer the following: Write a multi-choice question for the following article, with the given choices and answer: Article: There is one language, and people, young and old , men and women, use it very often, in every country in the world. It is everyone's second language . You can't hear it, but it is very easy to understand . It is sign ( )language. When you wave to a friend in the street, you are using sign language. When you put up your hand in class, you are saying "Please ask me, I think I know the right answer". When a police officer wants to stop cars or buses, he puts up his hand. He's using sign language. Churchill's famous "V for Victory "is also sign language. Sign language is useful in quite places full of noise . Even when you are swimming with your friends , you can have a talk under water. Options: A Many people B Police officers C All people D Students and teachers Answer: C All people Question:
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output: _ in the world use sign language.

input: Please answer the following: Write a multi-choice question for the following article, with the given choices and answer: Article: June 6this National Eye Care Day. It is a good chance for us to improve our eye health. What are common eye problems we have today? How can we protect our eyes? Read on to find out the answer. Eyes are important in our everyday life. We use them to read books, see colors and view the wonders of the world. But sometimes, we use them too much and it hurts them. In the past, nearsightedness was a common eye problem among children. This is mostly because of their bad eye habits, such as watching TV too long and reading books in bed. However, today's technology is changing the way we live. Children spend more time working and playing in front of computers, smartphones and iPads. US children spend more than 42 hours a week in front of electronic screens , US' ABC news reported. This has caused a new problem for our eyes: digital eyestrain . People with digital eyestrain may get headaches, dry and red eyes, eye pain, watering and other eye problems. But don't worry. The following tips can help you protect your eyes. Try them out. Screen advice: 1. When you are watching electronic screens, keep them at least 30 cm from your eyes. Try not to use your smartphone in direct sunlight. 2. Blink more often when you are looking at the screen. This can help to stop dry eyes. 3. Remember to take a 20-20-20 break: every 20 minutes, take a 20-second break and look at something 20 feet (about 6 meters) away. 4. Spend less time in front of screens. One to two hours a day is OK for your eyes. Options: A once B twice C three times D four times Answer: D four times Question:
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output: According to the 20-20-20 break rule, we'd better take a break _ if we need to watch the electronic screens for one and a half hours.

input: Please answer the following: Write a multi-choice question for the following article, with the given choices and answer: Article: Scientists have always wanted to know more about the other _ in space. Years ago, they knew many facts about the moon. They knew how big it was and how far away it was from the earth. But they wanted to know more about it .They thought and thought. At last they found the only way to know more was to send men to the moon. The moon is about three hundred and eighty-four thousand kilometers away from the earth. A plane can not fly to the moon because the air reaches only 240 kilometers. Then there is no air. But something can fly even when there is no air. That is a rocket. How does a rocket fly? There is gas in the rocket. When the gas is made very hot inside the rocket, it will rush out of the end of the rocket, so it can make the rocket fly up into the sky. Rockets can fly far out into space. Rockets with men in them have already reached the moon. Some rockets without men in them have flown to other planets much farther away than the moon. One day rockets may be able to go to any place. ,A, B, C, D,. Options: A cooking food for the astronauts B keeping the man in the rocket warm C making the rocket fly up D keeping the air in the rocket fresh Answer: C making the rocket fly up Question:
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output: The hot gas in the rocket is used for _ .

input: Please answer the following: Write a multi-choice question for the following article, with the given choices and answer: Article: HIGH (Human Growth Hormone) could be the favorite drug at the next athletic world championships, and we might never know it. It is a natural substance produced by the human body, and it helps children's bones and muscles to grow. Scientists are allowed to make the drug and it is also legal to take HGH in most countries. HGH is considered a wonder drug for children. It helps many children with growth problems every year. However, some athletes are now taking the drug. HGH helps add muscle in adults and recent research by the World Anti-Doping Agency shows that HGH may improve the sportsman's time by 5% when he takes part in short, fast races. Some athletes say that HGH surely makes them stronger. It also helps them to recover more quickly from injuries. Although it is _ by most professional sports, HGH is almost impossible to test for. The drug is completely natural and it will only show in tests for around 24 hours after taking it. Testing is usually done only during competitions, but athletes use HGH during training, so it is very difficult to know who has used the drug. This makes it very attractive for some athletes. Scientists are developing a new test which will find the drug in the body for up to two weeks. But it isn't going to be easy. Everybody has different levels of natural HGH in their body. For this reason, scientists are warning athletes of the possible problems with the drug. Research shows that HGH increase the risk of cancer. But is this enough to stop athletes from taking it? Scientists don't think so. Some athletes will do all they can to win, and worry about their health later. Options: A Because it can be taken during a competition. B Because it is very difficult to test. C Because it is allowed to take it. D Because it works for 24 hours. Answer: B Because it is very difficult to test. Question:
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output:
Besides making them stronger, why is taking HGH attractive for some athletes?