input question: Write a multi-choice question for the following article, with the given choices and answer: Article: On May 23, Shenzhen introduced new rules in order to prevent the "Chinese style of crossing the road". "Chinese people cross roads without thinking about traffic lights, so long as they are part of a group of people," said a post on Sina Weibo. A CCTV news program showed that in only an hour, more than 600 people jumped red lights when crossing a road in Shijiazhuang, Hebei. Many people say that they jaywalk because the red light lasts too long. Such an opinion is supported by a research group at Tongji University. _ did research on people's waiting times at different road crossings for three years. They found that Chinese people would wait for 70 to 90 seconds before they lost their patience. "People are likely to ignore the light when the waiting time is longer than they can bear," said Ni Ying, a member of the research team. However, a survey on Sina Weibo suggested that people jaywalk mainly because they ignore rules. "I always obey traffic rules. Time is important but safety should come first," someone wrote on his Weibo. Many countries give out punishments to jaywalkers. In Singapore, the maximum can be three months in prison . Some Chinese cities have started taking some actions, too. For example, the first three people in a jaywalking group will be fined 50 yuan in Shijiazhuang. But calling on people to obey rules is more important. To completely solve the problem, everyone should understand the importance of obeying the traffic rules. Options: A About five minutes. B Less than one minute. C Less than one and a half minutes. D More than ten minutes. Answer: C Less than one and a half minutes. Question:???
output answer: How long will Chinese people wait for to cross the road before they lose patience?

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: One day, Tomas Jefferson, the president of the USA, was crossing a river with a group of travelers. The river was overflowing its banks. So it was very dangerous to cross it on a horse. Each man was fighting for his life! Then another traveler came and he wanted to cross it, too. But he didn't have a horse. He watched the group and then asked Jefferson to take him. Jefferson agreed immediately. The man climbed on. After they were both safe to the other side of the river, someone asked the man, "Why did you ask present for help? Did you know him?" The man was shocked because he didn't know Jefferson was the president. "All I know," he said, "on some of your faces were written the answer NO, but there was the answer YES on his face." Options: A In a boat. B On their horses. C By swimming. D By building a bridge. Answer: B On their horses. Question:???
output answer: How did they cross the river?

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Once upon a time there lived two brothers named Jacob and William in Germany. They liked to listen to old stories and then write them down. So they had enough stories to make a book. You can guess the name of the book! It is Grimms' Fairy Tales. The story of this little book began when the brothers were still in school. And it started with a good teacher. The teacher liked to find out how things happened. Soon the two brothers were doing the same thing. They asked questions and then looked for answers. Among the questions the brothers asked, "Who made up the old fairy tales? Who first told about Cinderella ? Why made up the story of the Snow White and the story of Sleeping Beauty?"They found that no one knew the answers to such questions. The tales were made up in very early times. Most of them were made up in the days before people knew how to write. People told the stories to one another and to their children. But only a few old people still remembered them. "When old people die, the stories will die with them," said the brothers. "We must write down all the stories we can find." Jacob and William hunted for stories for five years. At last they had 89 tales written. Just before Christmas in 1812, the first book was published. People love the book! They asked more fairy tales. So Grimms put tales into two more books. In all, they collected 210 stories to put into their books. Options: A their teacher asked them to do so B their parents asked them to do so C they liked all stories very much. D they didn't want to the stories to die with the old people Answer: D they didn't want to the stories to die with the old people Question:???
output answer: The two brothers wrote down all the stories because _ .

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: In America, when people say 'man's best friend', they don't mean another person. Instead, they are talking about a lovely animal--a dog! These words show the friendship between people and animals. Dogs and other pets can give joy to people's lives. _ Animals can help people, too. You can teach dogs to be the 'eyes' for blind people or 'ears' for deaf people. Scientists have found that pets help people live longer! They make people happier, too. Because of that, they bring animals into hospitals for 'visits'. Americans have 'Be Kind to Animals Week' in the first week of May. There are many pet shows during the week. Even if you don't live in America, you can also show your love to animals. How? First think about how animals make your life richer . If you have a pet, take more time this week to play with it. Remember to give it nice food. If you don't have a pet, be kind to animals around you. For example, if you see a street dog, don't kick it. Just leave it alone, or make friends with it. If others around you do bad things to animals, try to stop them. As people, we must protect animals because they can't speak for themselves. Options: A Animals are man's good friends. B Dogs are too noisy. C Pets are lovely and needn't care and protection. D We have done a lot of things for pets. Answer: A Animals are man's good friends. Question:???
output answer:
What is the main idea of the passage?