17. It took them half an hour to go_____ the crowd.

　　　 A. through　　 B. across　　 C. cross 　　D. out

16. He has ______ cold for a couple of days.

　　　 A. caught　　　 B. had　　　 C. got　　　 D. been

15. The Caiyuanba Bridge ______ since last year.

　　　 A. was built　 B. has been built 　C. is being built　　　 D. has built

14. These boxes can be used　 _______ seats if we have no enough seats for the party.

　　　 A. for　　 B. to　　　　 C. as　　　　 D. in

13. The heavy box is _______, so I can't open the door.

　　　 A. on the way~　　 B. by the way C. in the way D. at the way

12. The weather in Chengdu is colder than ______ in Chongqing.

　　　 A. it　　　 B. the one　　　 C. one　　　 D. that

11. Go straight and you can find a post office ______ I will wait for you there.

　　　 A. at the end　　　 B. in the end　　 C. by the end　 　　D. at the end of

10. The man has to______a girl who he doesn't love.

　　　 A. married　　 B. married to C. married with　　　 D. was married

9. By the time of last term, we ______ all the lessons.

　　　 A. finished　　 B. have finished C. finish　　 D. will finish

8. A plane can't _______ on because of the heavy rain yesterday.

　　　 A. land　　　 B. drop　　 C. fall　　　　　 D. stop