20．You ‘d better not phone the manager between 7 and 8 tomorrow evening; he _____ an important meeting then.

　　　 A. will have　　 B.would have　 　C. will be having 　 　D. will have had

19. ---Where will you start your work after graduation?

　---Mmm, it’s not been decided yet. I ______ continue my study for a higher degree.

　A. need　　　　　　　 B. must　　　　　　　　　　　 C. would　　　　　　　　　　 D. might

18. ---Mum, have you seen my mobile phone?

---_______ you bought last week? I’m afraid I haven’t seen _______.

　A. The one; it　　　 B. The one; one　　　　　　　 C. One; it　　 　 　　　D. One; one

17．Only by hard work _________ learn English well.　　　　

　　　 A. you can　　　 B. can you　　　　　　　 C．you could　　　　 　 D．could you

16. He _____ his first wife soon after his graduation from university but _____her a 　　　 month later._

　　　 A. married with; separated　 　　 B. married to; got separated

　　　 C. was married; separated with　 D. married; separated from

15．_____ around Zhongshan Park, the tourists were taken to visit the Sank Lake.

　　　 A.Showing　 　　B.Having shown 　C. Being shown 　　　D.Having been shown