31. ---I must be back now. Have a good trip.　 ---_____.

　 A. The same to you　 B. You’re welcome　 C. Thank you　 D. That’s all right

30. It has rained for so many days. This is _____ there is much water here and there.

　 A. why　　 B. because　 C. so　　 D. that

29. If you want to be successful in something, _____, you must be sure of yourself.

　 A. after all 　B. all in all　 　C. at all　 . D. first of all

28. Excuse me, but I don't know how to read your name. Could you _____ it for me, please?

　 　A. spell　 B. write　 C. pronounce 　D. show

27. Do you have any difficulty_____ these flowers? I'd like to help you if you have any.

　 A. to plant　　 B. for planting 　C. with planting　 D. in planting

26. The little boy has been ill at home for three months. _____, he has never given up teaching

　　 himself.　 A. Besides 　B. However　 C. So　　 D. Though

25. You live next to Tom; you _____ know his telephone number.

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

24. Experts haven't yet quite understood what has _____ British English and American English

　 so different.　　 A. let　　 B. given　　　 C. shown　　 D. made

23. Just before the class began, Mr Green came into the classroom _____ his hands.

　 A. with a lot of books in 　　　B. for many books on

　 C. have many books in　 　　　D. with many books on

22. About 50 American _____will come to this museum to enjoy those famous ancient Chinese

　 paintings.　 A. tourists 　　B. travellers　 　C. passengers 　　D. visitors