31. --- What’s the matter with Jason. He looks a bit upset.

　 --- Didn’t you know? When returning from his holiday last night, he found his house________.

　　　 A. broken off　　　　 B. broken into　　　　　　　 C. broken out　　　　 D. broken down

30. Oh, it’s so cool in the house. You _______ have turned on the air-conditioner, haven’t you?

　　　 A.　 should　　　　　　 B. might　　　　　　　　　　　 C. must　　　　　　　　 D. can

29. Fathers often feel __________ their duty to earn more money for their family.

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

28. --- ________ the class done most of the work?

　 --- Yes, but the rest ___________ rather difficult.

　　　 A. Has, are　　　　　　 B. Has, is　　　　　　　　　　　 C. Have, are　　　　　 D. Have, is

27. The problem lies __________ we are now giving him a fish, not teaching him to fish.

　　　 A. in that　　　　　　　 B. on that　　　　　　　　　　　　　　 C. in which　　　　　　 D. on which

26. We were lucky to have survived the train accident. _____, the first and last car were smashed.

　　　 A. On top of this　　 B. What was worse　　　　　　　 C. As it was　　　　　 D. So it was

25. Only after being attacked by the Japanese in Pearl Harbor ___in the Second World War thoroughly.

　　　 A. had America involved　 　　　　　 B. was America involved　　　

C. America had involved　　　　　　　 D. America was involved

24. Mum, please let us, Mary and me, go to Jack’s birthday party tomorrow, ______?

　　　 A. can you　　　 B. will you　　　　　　 C. shall we　　　　　　 D. may we

23. --- Sorry to have interrupted you. Please go on.　 --- Where was I?

　 　--- You ________ you didn’t like to be prejudiced against.

　　　 A. said　　　　　 B. had said　　　　　　 C. were saying　　　　　　　 D. had said

22. The whole world is undergoing the biggest financial crisis nowadays, ____ calls for international cooperation among all nations to get over.

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