People travel to work in different ways. Some people go to work____foot because they live near____(they)work places. Some people go to____by bike because they live farther away, or they like____(ride)bikes. They think it's good for their____(healthy). Today more people have private (私人的) cars, so they can go to work____their cars. In the south of China, many people even go to work____boat because water____(be) around their____house). Will people ____(go) to work by plane? I think so, if necessary (如果必要的话).