input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Large population has caused many problems. For example, the traffic is very heavy in some big cities. During the last ten years, big cities like Beijing and Harbin were full of cars and buses. Now the streets are completely crowded and it's very difficult to drive a car along them. Drivers must stop at hundreds of traffic lights. What are our cities going to be like in the future? How can we solve the problem? There are some good ideas to reduce the use of private cars. In 1971, the officer in Rome began an interesting experiment: Passengers on the city buses didn't pay for their tickets. In Stockholm there was another experiment: People paid very little for a season ticket to travel on any bus, trolley bus and train all over the city. In many cities now some streets are closed to vehicles and _ are safe there. In London there is another experiment: Part of the streets is for buses only. So the buses can travel fast. There are no cars or taxis in front of them. , . Options: A London B Paris C Rome D Stockholm Answer: C Rome Question:???
output answer: The city of _ once experimented on a completely free bus service.

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Emma and Hannah are 13-year-old school girls from Minnesota, USA. They are good at making new things and both of them are also good at sales. They are selling charms made out of bottle caps. The girls came up with the idea last summer when they saw charms were popular with kids. They talked with their parents about the idea. Since then they have sold enough charms to buy a bike for Hannah. The girls collect bottle caps and then clean them. They find some interesting pictures on the Internet or on paper, and then glue them onto the inside of the caps. There are different kinds of pictures. "Peace signs are popular with girls, and single-letter charms are popular with boys whose names start with those letters," Emma and Hannah said. Now, charms can be found everywhere at Dakota Hills Middle School in Eagan. "Students put charms on purses, backpacks, and their lunchboxes," said Emma. Emma and Hannah also have a shop on the Internet. They hope they can sell their charms to more kids. They're thinking about selling their charms at the Eagan Market Festival next summer. Their business is not only for getting money. At their Valentine's sale, 20% of the income went to charity. Options: A About a year ago. B About two months ago. C Nearly fifty days ago. D Nearly five weeks ago. Answer: A About a year ago. Question:???
output answer: When did the girls begin to sell the charms?

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Everyone wants to be healthy. Then do you know how to keep in good health? You may say, "Having a balanced diet and doing exercise can help us." I agree with you. _ 1 In fact, good sleep is also very important. Lots of people in the world have sleep problems. They can't sleep well at night. _ They are unhappy and stressed out. Then they may have some other health problems. _ 2 _ How can people sleep well at night? Here are some good ideas. _ 3 _ * Sleep in a quiet room. * Do some exercise before going to bed. It'll make you sleepy . * Wash your feet in warm water before you go to bed. * Have a glass of milk. It's pretty good for sleeping. * Don't think about boring things. _ 4Try to be relaxed. Options: A eat well and do exercise B sleep well C have more vegetables D eat and sleep well, and do exercise Answer: D eat and sleep well, and do exercise Question:???
output answer: The writer thinks people should _ to stay healthy.

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Nick is a student. He has four friends. They are Ben, Eric, Peter and Andy. But they are all very different. Nick is confident and kind. He is also a good listener. All of his friends like to talk to him about their problems. This is his best quality. Ben is the quietest friend of them. He is not energetic and active like Eric, or outgoing like Peter. But he is so patient and fair. When they have an argument, Ben is always there to listen to everyone and make sure that everybody stays friends. Andy is very clever and hard-working. He does the best in exams at school. It is really kind of Andy to help Peter with his homework when he is having trouble. They get along well with each other like brothers. Options: A He is confident. B He is kind. C He has good friends. D He is a good listener. Answer: D He is a good listener. Question:???
output answer:
What is Nick's best quality?