【正确答案】
Bicycle is the most common means of transport in our country. There are several reasons. First, most people are not rich enough to buy a car. Because a bicycle is not expensive, almost every family can afford it. Second, China has a large population and the traffic is heavy. Bicycle has the advantage of being small. A road which can only hold two cars side by side can allow more than ten bicycles. Finally, people like to ride on a bicycle to school, to work and to travel. It's so pleasant and it does good for people's health.
Compared with a ear, a bicycle has disadvantages and advantages. For instance, a long travel is not fit for a bicycle but is fit for a car. A person who sit all day in a car might get fat and unhealthy while a person on a bicycle becomes health.
Bicycle is so popular in china that it will remain so for a long time. So many things are to be done to make cars popular in china. Even when the time comes, bicycle would also be welcome.