题目内容：

从题中所给的A、B、C、D四个选项中选出能填入空白处的正确选项，并将所选答案涂到答题卡（填在答题卷）的相应位置上。

Bicycle riding has many advantages. It is cheap, fun, healthy and good for the environment.

If you     by bicycle, you don’t have to buy     as you must when you drive cars. Besides, it costs less to repair    a car does. Get on a bicycle and ride around, and you may     something new all around you. Bicycle riding is especially     for health. It is good exercise. If you go to work by     a bicycle instead of driving a car or taking a bus, you can have a better   47  to get enough exercise you need everyday. Exercise like cycling can      people feel better and more relaxed. It is also good for our environment. It is less noisy and does not     the air.

Bicycle riding is so cool. That is       more and more people like cycling.

1.A. think         B. travel          C. teach      D. trade

2.A. oil         B. sugar           C. water      D. soup

3.A. till         B. until          C. than      D. unless

4.A. check        B. cheat           C. agree      D. find

5.A. bad           B. good            C. thank      D. sorry

6.A. taking       B. drawing        C. driving   D. riding

7.A. chance        B. change          C. challenge D. control

8.A. hear         B. see            C. make      D. notice

9.A. provide       B. pollute         C. produce    D. protect

10.A. when        B. where           C. how      D. why