题目内容：

完形填空（10分）

More and more Americans are going to work by bike. Do you know why more people are      bikes to work? We can answer the question in    ways. First, bikes don’t need gasoline (汽油), so it takes       money to use them. Second, a bike doesn’t         much space (空间), so it is    to find a place for it. And riding a bike is good for one’s         . People often drive their      to offices or to shops, but now people think riding bikes is a good way of doing sports.

That’s      more Americans are now going to work        bike, and they are      their own cars at home.

1.A. making  B. riding    C. jumping   D. believing

2.A. popular  B. different  C. famous   D. friendly

3.A. less   B. more   C. much    D. many

4.A. mend  B. need   C. have    D. find

5.A. easy  B. hard   C. cheap    D. expensive

6.A. journey   B. health      C. study  D. work

7.A. buses     B. trains   C. cars    D. boats

8.A. what  B. why   C. how    D. where

9.A. by   B. on   C. at     D. in

10.A. cleaning  B. leaving  C. staying  D. learning