21. You can _____ on her because she always keeps her ______

　　A. live, word

　　B. look down, words

　　C. depend, words

　　D. rely, word

　　22. It is human beings who should be responsible _______ the harm done ____nature.

　　A. to, to B. for, to

　　C. for, at D. at, to

　　23. “Not having returned home yet, ____________”, his father said to the police..

　　A. his mother got worried

　　B. his mother must be worried

　　C. I think he is missing

　　D. he must have got into some trouble.

　　24. If city noises _______ from increasing, people ______ shout to be heard even at the dinner table 20 years from now.

　　A. are not kept; will have to

　　B. are not kept; have to

　　C. do not keep; will have to

　　D. do not keep; have to

　　25. When ________what you said about the environment and the economy needing to work together more, I was very much __________.

　　A. heard; impressed

　　B. hearing; impressed

　　C. hearing; impressing

　　D. heard; impressing

　　26. What you did _____his anger.

　　A. added up to B. added up

　　C. added to D. added

　　27. He has already achieved success_____ his wildest dreams.

　　A. at B. beyond C.within D. upon

　　28. The headmaster arranged ______Tom to go to Britain.

　　A. as B. for C. to D. with

　　29. The ____lights in the classroom are not bright enough.

　　A. electrically

　　B. electrician

　　C. electrical

　　D. electric

　　30. The last one ______pays the meal.

　　A. arrived B. arrives

　　C. to arrive D. arriving

　　31. I like Mr. White best, although he is my _____teacher.

　　A. before B. ahead C. former D. pass

　　32. Don’t speak all at once! _________, please.

　　A. Each at one time

　　B. One by one time

　　C. One for each time

　　D. One at a time

　　33. ---Do you need any help, Lucy?

　　—Yes. The job is ____I could do my self.

　　A. less than B. more than

　　C. no more than D. not more than

　　34. _______fire, all exits must be kept clear.

　　A. In place of B. Instead of

　　C. In case of D. In spite of

　　35. He had ______little money that he could buy noting.

　　A. such B. such a C. so D. so a