阅读理解。 Bicycles in China 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 (因此), China is known as ' the kingdom of bicycles '. In China, many families have one or two bicycles. Compared (与……比) 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. We still have a long way to go to solve the problem . 1. Where can you see bicycles in China? A. In the big city. B. In the town. C. In the country. D. Almost everywhere. 3. 'The kingdom of bicycles' here is saying  ______. A. China has a large number of bicycles B. China makes bicycles C. bicycles are a kingdom D. only China has bicycles 3. Which of the following is NOT an advantage of bicycles? A. Bicycles are much cheaper than cars. B. Bicycles are easy to park. C. Bicycles are more beautiful than cars. D. Bicycles are safer than cars. 4. What problems can bicycles bring? 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. 5. What does the last sentence mean? A. We should drive cars instead of riding bicycles. B. It's too far to ride bicycles. C. Bicycles are safe enough. D. We still need to do much to solve the problem.