34. Nothing else_____more important than water in the place like a desert.

　　 A. we can’t find　　　 B. can’t we find　　 we find　　 D. we can find

33. ______all you had done to him, he still treated you so kindly.

　　 A. In spite　　　　 B. No matter　　　　　 C. Despite　　　　 D. Although

32. ____the problem of land erosion getting more serious, the government is searching for a way to deal with it.

　　 A. As　　　　　　 B. With　　　　　　 C. When　　　　 D. If

31. As far as we know, traveling in space has been made______with the development of science and technology.

　　 A. it is possible　　 B. it possible　　　　 C. possible　　　 D. impossible

30. A: Professor Hopkins didn’t turn up last night, did he?

　 B: No, we_____for him. A whole night was wasted.

　　 A. needn’t have to wait　　　　　　　　　 B. couldn’t have waited

　　 C. needn’t have waited　　　　　　　　　 D. didn’t need to wait

29. Don’t disturb me. I ______the letters all morning and ______ten so far.

　　 A. write; wrote　　　　　　　　　　　　　 B. am writing; have written

　　 C. was writing; wrote　　　　　　　　　　　 D. have been writing; have written

28. Li Ping works hard at his lessons, he didn’t pass the exams last time, ______.

　　 A. though　　　　　　 B. yet　　　　　　 C. however　　　　 D. although

27. Bob has worked out an excellent plan. In fact, I doubt whether anyone else in the department has______idea.

　　 A. a good　　　　　　 B. a better　　　　　 C. the better　　　 D. the best

26. The poor employee, made_____several hours of hard work every day, couldn’t stand his employer any longer, leaving without a word.

　　 A. do　　　　　　　　 B.doing　　　　　 C.to do　　　　　 D. done

25. He ______a number of books about the subject in the library before he gave his speech.

　　 A. referred　　　　　　 B.looked into　　　sulted　　　　 D.looked up