Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: Ruby, the artist, is an Asian elephant, She is17 years old. She lives in the zoo. Ruby has produced about 100 paintings since last year. She has made more than $ 40,000 for the zoo. Zoo leaders say Ruby first showed the talent about four years ago. Zoo workers watched her make the marks in the sand with her trunk. She rubbed out the marks, then made the new ones. The zoo worker gave her brushes and paints. Soon Ruby painted pictures. Newspaper reporters wrote Ruby, then people asked about buying her pictures. And in this way, she made a lot of money for the zoo. This is how Ruby does the paintings. A zoo worker holds different color paints. Ruby touches the colors she wants. Then the worker gives her brushes with the chosen colors in her trunk and Ruby begins painting. Options: A make other ones B clear her trunk C dig a hole in the sand D ask for brushes and paints Answer: A make other ones Question:
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The answer is:
Ruby rubbed out the marks she had drawn in order to _ .

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: Bicycles are very popular in China. In our country you can see bicycles almost everywhere. When you walk on the road, you will find a lot of people riding bicycles to school, shops and anywhere else. Therefore , China is known as "the kingdom of bicycles". In China, many families have one or two bicycles. Compared(......) with cars, bicycles have many advantages. First, they are much cheaper than cars. Most Chinese can't afford cars, but they can afford bicycles. Second, bicycles are small enough to park anywhere, while cars need a larger piece of land to park. What's more, with lower speed, bicycles are safer than cars. However, bicycles also bring some problems. Some riders don't obey the traffic rules and some riders don't think about others' safety. So they ride too fast. During rush hours, too many bicycles may cause traffic jams. _ Options: A Bicycles are more and more expensive. B Riding bicycles is more dangerous than driving cars. C There are no places for so many bicycles. D Too many bicycles may cause traffic jams. Answer: D Too many bicycles may cause traffic jams. Question:
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The answer is:
What problems can bicycles bring?

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: Paris is the capial of France. Its subway is very special. You can enjoy its culture when you are in this city. First you see many people reading books in the subway. Whenever they are in the subway or at the station, there is always a book in the hand. The subway station in Paris is not big , but each of them has its special facts. Some stations looks ships. Some have clothes, caps and shoes. And every station has a big advertisement picture. But many of them are for selling clothes and cosmetics . You can meet some beggars in the subway. But the beggars in the Paris subway are also very special. They often play the violin or guitar in the train. They don't feel shy at all. Instead they think it is natural. After playing, they will go around the train and ask you to give them some money. If you want to learn more about Paris, go to the subway and enjoy its culture by yourself. Options: A Every station is very big in Paris. B Every station has something to sell C The beggars in the Paris subway station are very shy. D The beggars in the Paris subway station can play some instruments. Answer: B Every station has something to sell Question:
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The answer is:
Which of the following is true?