1. —How do you travel to school every day?
　 —I go ________ bus.
   A. on B. at C. in D. by
2. The policeman helped the old woman ________ the road.
   A. above B. across C. through D. over
3. During the Spring Festival , the heavy snow stopped many people from ________ back home.
   A. go B. goes C. went D. going
4. You must ride your bike ________ the right side of the road.
   A. at B. on C. in D. for
5. Peter usually gets up early ________ the morning.
   A. on B. in C. at D. of
6. This photo reminds me ________ the days when I worked ________ the farm with my classmates.
   A. about; in B. about; on C. of; in D. of; on
7. It’s rather cold in most of South China ________ in spring.
   A. on time B. at a time C. at times D. all the time
8. When the school building began to shake, the teachers ran downstairs ________ all the students. The teachers are real heroes.
   A. after B. with C. before
9. Mr Smith lives ________ that building. His house is ________ the fifth floor.
   A. in; on B. of; to C. on; in D. to; at
10. We will never forget what happened ________ the afternoon of May 12, 2008.
   A. in B. by C. at D. on
11. It’s very kind ________ them to pick me up at the railway station and drive me home.
   A. for B. to C. of D. with
12. —What do you often do ________ classes to relax yourself?
　　—Listen to music.
   A. over B. among C. between D. through
13. We looked at each other ________ surprise when we heard a bird singing “Happy birthday to you”.
   A. in B. to C. by D. at
14. She will leave her homework ________ the teacher’s desk after school today.
   A. from B. to C. for D. on
15. —How do you learn English so well?
　　—________ chatting with my uncle in America online.
   A. For B. By C. In D. With