13. Beethoven, the great musician, wrote nine symphonies in his life, ______ after he had lost his hearting.

　　A. most of them written B. most of which written

　　C. but most of which written D. which was most written

　　14. It was because he was in a dangerous condition ______ the doctor decided to operate on him.

　　A. that B. so that

　　C. so D. in which

　　15. No sooner had he finished the last bit of food ______ the waiter came and cleared the table.

　　A. then B. than

　　C. that D. thus

　　16. Once ______ oxygen for more than five to seven minutes, the brain will be given damage that cannot be repaired.

　　A. escaped from B. deprived of

　　C. divided by D. drunk in

　　17. I live in the city, but on weekends, I sometimes go to the countryside ______ a change.

　　A. with B. for

　　C. on D. to

　　18. Although ten years has passed, the sweet smile of his late wife is still ______ his mind.

　　A. in B. over

　　C. on D. along

　　19. It is easy to make a promise, but hard to ______ it.

　　A. keep B. maintain

　　C. remain D. continue

　　20. Scientists Will have to come ______ new methods of increasing the world’s food supply.

　　A. up with B. down with

　　C. up for D. down to

　　21. He often acts ______ what will happen afterwards.

　　A. apart from B. as a result

　　C. with regard D. regardless of

　　22. An optimistic person always looks ______ rather than lives in sad memories.

　　A. up B. out

　　C. ahead D. through

　　23. The light and radio in his room are on. He ______ home.

　　A. could be B. must be

　　C. has to be D. needs to be

　　24. Whenever the young man ran ______ difficulties, he would turn to his father for help.

　　A. into B. over

　　C. out of D. short of

　　25. For example, the English used by a Canadian is not exactly like ______ used by an English.

　　A. one B. that

　　C. what D. those

　　26. Arthur has such a(an) ______ personality that everyone likes him.

　　A. pleasant B. easy

　　C. critical D. demanding

　　27. He was never ______. He didn’t want either fame or wealth. He just wanted to live a peaceful life.

　　A. interesting B. purposeful

　　C. prejudiced D. ambitious

　　28. Travel in space can be exciting; nevertheless it can be boring and lonely ______.

　　A. sometime B. some time

　　C. at time D. at times

　　29. Having been told that the inspector was coming to our class today, we all tried our best to ______ ourselves.

　　A. show B. present

　　C. behave D. defend

　　30. I was very upset at ______ a business trip to Beijing at this crucial moment.

　　A. his taking B. he takes

　　C. he took D. him to take