21. Beethoven is my favorite musician. I regard him as ________ other musicians.

　　A) superior to B) more superior than C) more superior to D) superior than

　　22. I hope that you’ll be more careful in typing the letter. Don’t ________ anything.

　　A) withdraw B) omit C) reduce D) lead

　　23. She is a very ________ secretary: she never forgets anything or makes a mistake.

　　A) anxious B) effective C) adequate D) efficient

　　24. I’ll accept any job ________ I don’t have to get up early.

　　A) lest B) as long as C) in case D) though

　　25. Once out of the earth’s gravity, the astronauts is ________ by the problem of weightlessness.

　　A) affected B) effected C) inclined D) related

　　答案：21-25 ABDBA

　　26. Medical research has shown that the widespread of use of cigarettes contributes ________ the increase of cancers.

　　A) towards B) for C) with D) to

　　27. The computer has brought about surprising technological changes ________ we organize and produce information.

　　A) in a way B) in the way C) in that way D) in no way

　　28. He is late again today. I’ll ________ that he will not be late tomorrow.

　　A) be sure B) hope for C) felt D) to be felt

　　29. This popular sports car is now being ________ at the rate of a thousand a week.

　　A) turned down B) turned out C) turned up D) turned on

　　30. In Britain people drive ________ the left.

　　A) at B) on C) to D) in

　　答案：26-30 DBBBB