33. We couldn’t persuade him to give up playing games and all our efforts were _____.

A. in turn　　　　　 B. in retain　　　　　 C. in store　　　 D. in vain　

32. She couldn’t concentrate on her study with so many problems　　　　 ．

　　 A．solved　　　　 B．to solve　　　　 C．solving　　　 D．being solved

31.They believed, ______ did we, that these modern paintings collected in the Shanghai Art Gallery were as valuable as those in the Museum．

　　　 A．and　　　　　　　　　 B．which　　　　　　　 C．neither　　　　　　　 D．so　

30. It is nearly 12. His door is open and his car is parked outside. He ______ now.

　　 A. may have returned　　　　　　　 B. might return　　

　　 C. must have returned　　　　　　　 D. could return　

29. -Would you mind if I used your cellphone? -______. A. Yes, do please　 B. Go ahead　　 C. Of course　　 D. All right　

28. We told him to see the doctor right away, _______ advice he immediately took with pleasure.

　　 　A. that　　　 B. which　　　 C. this　　　 D. what

27. -Kate returned home only yesterday. -Really? Where ______? A. has she been　　 B. had she been　 C. has she gone　　 D. had she gone

26. I really think I should have been invited to the dinner party.　 I’m unhappy that I ______．

　　　 A wasn’t 　　　　　　　 B． didn’t　　　　　　 C． haven’t　　　　　 D． hadn’t　

25. Robert, ______ back to your office in no time; there’s a Mr White wishing to see you．

　　　 A come　　　　　　　　　 B．to come 　　　　　 C．having come 　 D．coming　

24. Carter Druse _____ his selection for the important task to his courage, devotion and knowledge of the area.

　　 A. led　　　　　　 B. owed　　　　　 C. devoted　　　　 D. offered