Problem: Write a multi-choice question for the following article, with the given choices and answer: Article: Do you think of white when someone talks about a polar bear? In fact, the polar bear does not have white fur. It just appears to be white. Polar bears have a very good sense of smell. It helps them to find food. During summer, polar bears sleep longer, because they are able to find their food more easily at night. Usually, after a meal, polar bears have a short sleep. A polar bear can have 2-3 babies at a time. They live with their mothers until they are about two-and-a-half years old. However, polar bears will die out soon because of people. There are only 20,000 to 25,000 polar bears in the world. The ones that are left are trying to survive today. The number of polar bears is becoming smaller and smaller because of the loss of sea ice-- polar bears mostly inhabit the sea ice, not the land ice. This is happening because of global warming , pollution, hunting and so on. Ordinary people don't care, but great people have the power and want to save tigers, fight for giant pandas and save polar bears. Ordinary people will wait, but great people will find a new world. For me, I will not waiting. I will take the bus more often from now on. Join me and save the polar bears, and, of course, the tigers, the giant pandas and... Options: A A magazine about animals. B A book about greetings. C A poster about working plans. D An instruction book. Answer: A A magazine about animals. Question:

A: Where can this passage come from?

Problem: Write a multi-choice question for the following article, with the given choices and answer: Article: Sydney is a young city. Its history goes back just over 200 years. But in Australia, it is the oldest city. It is also the country' s largest city. Sydney is the capital of New South Wales and the most popular city of Australia. The climate of Sydney is very good. It' s not too cold during the winter and not too hot during the summer. The sky is blue, the air is fresh, and birds sing in the garden. People who live in Sydney seem to have an easy life style. They will tell you, "Don't worry. " Many people think that Sydney is one of the most attractive cities in the world. It has many tall and modern buildings. Among them, Center point Tower is the tallest. Standing on the 305-metre(80 storeys)tower, you will have a great view of the city. Sydney is famous for its deep harbor . The harbor has many bays and beautiful surf beaches. Among them, Bondi beach is the most popular. Sydney Harbor is not only beautiful, it also serves as a large port. Ships carry wool, wheat and meat from Sydney to other countries. People living in Sydney like to call themselves Sydneysiders. They are mostly friendly and easygoing. When they are not working, they love to have a good time at the beach, swimming and sailing. Options: A youngest B largest C coldest D hottest Answer: B largest Question:

A: Sydney is the _ city in Australia.

Problem: Write a multi-choice question for the following article, with the given choices and answer: Article: China's Winter Olympians have been welcomed home as national heroes from Vancouver, Canada. The country enjoyed its best Winter Games results, collecting 11 medals in Vancouver--including 5 gold medals. With flowers and national flags in hands, many people waited at Beijing Airport for hours. Every member was received by a crowd of family members and friends. Hundreds of workers and fans welcomed the athletes and coaches back with color balloons and ribbons. Wang Meng who won three gold medals in Vancouver Winter Olympics said, "We have shown the Olympic spirit and our Chinese sports spirit at the Vancouver Olympics. We Chinese athletes didn't fear to meet the strong opponents and had good team work." ,. Options: A One. B Two. C Three. D Four. Answer: C Three. Question:

A: How many gold medals did Wang Meng win in Vancouver?

Problem: Write a multi-choice question for the following article, with the given choices and answer: Article: It's lunch time. You're hungry and want to get your favorite meal in the restaurant, but there are a lot of people waiting at the door. Don't worry-in cyberworld, )you can get your meal just on the Internet. "Shopping has never been so easy. With just a single click on your mouse, anything that you ordered online can be taken to your door quickly," said Bian Jing, a twenty-year-old girl. "I don't want to spend too much time shopping, so I like doing shopping online better than in a usual store," said a boy from a middle school. "It's easy to find the things you want online." If the shoppers buy something online, they can find lower prices and wider choices of things. But many teachers and parents are worried that shopping online is becoming too popular. "It's not a good way for middle school students to spend their money," said a teacher. "I don't want them to shop online." "It's also dangerous to lose money at online stores, because some of them just want to cheat shoppers," another teacher said. Most parents are not willing to pay the money their children spend on the Internet. Options: A how to shop on line B different opinions about shopping online C shopinning on line is popular D most students are worried about shopping online Answer: B different opinions about shopping online Question:

A:
The main idea of the passage is _ .