Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: Welcome to the zoo Day open : Fees : Monday to Friday Adults : $ 8. 00 10:00 am~6:00 pm Ages 8~14: $ 3. 00 Saturday to Sunday Ages 15~18 : $ 6. 00 8 :00 am~8 :00 pm Under 8 : Free Try our train ride for $ 2. 00 per person! ,. Options: A 3 dollars. B 4 dollars. C 6 dollars. D 7 dollars. Answer: B 4 dollars. Question:
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The answer is:
. If you are 13 and your brother is 7, how much do you pay for the train ride?

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: Square Dance ABC is an exciting new way to practice square dancing. Enjoy a fan, easy beginner's square dance, with no experience needed. There are three different dances. The A, B and C dances can be experienced in any order. This is the main difference between Square Dance ABC and the traditional "lesson-based" way. You can do the three beginner's dances in any order. Instead of waiting until a class starts once a year, people can start Square Dance ABC any time! After all three dances (in an order), dancers have learned 22 square dance movements. The next step is the experienced ABC dance, using all 22 movements. It is easy to convince people to try square dancing any time. Most people that try it will like it. Square Dance ABC will bring lots of opportunities for fun, fitness and friends! Come on, we'll make this project as easy as A-B-C! If you have questions or comments about this site, please e-mail us at Webmaster@Square Dance ABC.com. Options: A an advertisement by an English club B an invitation by an English club C an application by a sports club D an advertisement by a dance club Answer: D an advertisement by a dance club Question:
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The answer is:
The passage is probably _ .

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: The Earth has warmed by about half a degree(0.50degC)over the last 100 years. It could be getting warmer on its own, but many scientists think that people are making the Earth warmer by making a greenhouse effect. The greenhouse effect is important. Without it, the Earth would not be warm enough for us to live on. But just a little warmer than it is now could cause problems for humans, plants and animals. Many of the things we do every day can change the Earth's temperature by sending greenhouse gases into the air. We send greenhouse gases into the air when we watch TV, turn on lights, dry hair, play video games, wash or dry our clothes or drive cars. The rubbish from factories and homes also produces greenhouse gases. Even a small change in temperature can affect our weather. This can cause changes in the sea levels, the air, flooding, and our fresh water. The change in the temperature can also cause changes in the living places for animals and plants, endangering many animals. Global warming is a big problem, and every little bit we do can help. We can save electricity. We can save energy in other ways such as by taking buses or walking rather than driving cars. We can recycle to reduce the rubbish and save natural resources such as trees, oil and metals. We can buy products that don't do bad to the environment and we can turn to solar energy. Remember the little bit that you do will bring a better world. Options: A the greenhouse effect is important B humans are making the earth warmer C the earth is getting warmer in 100 years D the earth could be getting warmer by itself Answer: B humans are making the earth warmer Question:
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The answer is:
In this passage, the scientists are mainly trying to make the readers realize _ .