32. I am really sorry ________your letter.

A. to delay to answer　　　　　 B. delaying to answer

C. to have delayed answering　　 D. having delayed answering　

31.To regain their_______ after an exhausting game, the players lay in the grass.

A. force　　 B. energy　　 C. power　　 D. health

30. The reason ______he didn't come was ______he was ill.

A. why; that　　 B. that; why　　 C. for that; that　　　　　 D. for which; what

29. All he has done ________ worth _________.

A. is; being paid attention to　　　 　B. is; paying attention to

C. are; to pay attention to　　　　　 D. are; to be paid attention to

28. You have made a few grammar mistakes in your composition but _______ you have done well.

A. first of all　 B. in other words　　 C. on the other hand　 D. all in all

27. The fire made _____ difficult to rescue the people trapped under the ruins in the earthquake.

A. /　 B. this　 C. that　　 D. it

26. The world will be different, and we will have to be prepared to ________ the change.

　 A. adapt to　　 B. adopt to　 C. apply to　 D. devote to

25. _______ for a long time, so they gave a good performance in the school art festival..

A. Having practised　　　　 　B. Since they had practised

C. They had practised　　　　　 D. Having been practised

24. My sister was very unhappy for _______ to the party.

A. having not been invited　 B. not having invited

C. having not invited　　　 D. not having been invited

23. -Is your sister going to Lily’s birthday party?

　 -I’m not sure. She _______ go to cinema with her boyfriend instead.

　 A. has to　　　 B. must　　　 C. ought to　　　 D. might