24. They will come to help us with the harvest ________ they are busy tomorrow.

　 A. even if　 B. however　　 C. as though　　 D. even although

23. The woman ________ an overcoat suddenly fell from the bike in the street.

A. wears　 　　 B. dressing in　 　　 C. wearing　 　　　 D. dressed

22. Many students believe the choice of their courses and universities should _________ their own interest.

　 A. be based on　　 B. base on　　 C. be basing on　　　 D. base at

21. While _________ in the countryside, he made many friends with the natives there.

　 A. worked　　 B. working　　 C. he works　　 D. he is working

20. We should be careful of cheats who often ________ some poor men _________ believing them.

　 A. cheat; out of　　 B. cheat; in　 　C. cheat; into　　 D. cheat; to

19. His whole income ________ no more than 1,000 Yuan per month.

　 A. added up to　　 B. added to　　 C. is added up　　 D. added

18. Once formed, the bad habits are hard to ______.

　　　 A. move　 　　 B. get rid 　　 C. remove　　　 　 D. place

17. I have no idea ______.

　　　 A. who does this bag belong to　　 B. who this bag belongs

　　　 C. who does this bag belong　　　 D. who this bag belongs to

16. I don’t know whether they did it by accident or ______.

　　　 A. with design　　 　　　 B. by design

　　　 C. in design　　　 　　　　 D. for design

15. ---How long _________ in Beijing?

　 ---For just the weekend, I’ll be back next Monday morning.

　 A. have you stayed　　　　　　 B. are you staying

　 C. did you stay　　　　　　　 D. do you stay