31. -Why are you so excited?

　　 　-Peter invited me _______ on a trip to Yuntai Mountain.

　　 A. to go　　　　 B. go　　　　　 C. going　　　　 D. went

30. Soft drinks _______ to children for free in some restaurants on Children’s Day.

　　 　A. offer　　　　　　　　　　　　 B. have offered

　　 　C. are offered　　　　　　　　　　 D. will be offered

29. -What do you think of the dress?

　　 　　-Wonderful. I don’t think I can find a _________ one.

　　 A. good　　　　 B. better　　　　 C. bad　　　　　 D. worst

28. -Mr Hu, can you tell us how to learn math well?

　　 　-Sure. But remember nothing can be learned _________ hard work.

　　 A. by　　　　　 B. at　　　　　　 C. without　　　 D. for

27. -Mom, can I leave my homework for tomorrow?

　　 　　-I’m afraid not. Don’t _________ what you can do today till tomorrow.

　　 A. put on　　　 B. put down　　　 C. put up　　　　 D. put off

26. _______ you wait a few more minutes? It’ll be your turn soon.

　　 A. Must　　　　 B. Should　　　 C. Could　　　　 D. Might

25. -I called you at 4:00 yesterday afternoon, but no one answered.

　 　　　-Sorry, I ______ with my friends at that time.

　　 A. swim　　　　 B. swam　　　　 C. will swim　　　 D. was swimming

24. You won’t feel happy at school ______ you get on well with your classmates.

　　 A. though　　　 B. when　　　　 C. unless　　　　 D. because

23. I have some problems with my English writing. Can you give me some________?

　　 A. advice　　　 B. decisions　　　 C. information　　 D. messages

22.-Will you take part in the English speech competition tomorrow?

　　 　　-Sure. I see as a chance to prove_________.

　　 A. myself　　 B. me　　 C. yourself　　 D. you