15.　　　 I really don’t know ______ about it.

　A. what to do B. how to do C. to do what D. how can I do

14.　　　 -What is a writing brush, do you know?

　-It’s used ______ writing and drawing.

　A. with B. to C. for D. by

13.　　　 We could see nothing because the lights suddenly ______.

　A. went on B. went over C. went down D. went out

12.　　　 The mountain was ______ steep ______ few people in our city reached the top.

　A. so; as B. so; that C. as; as D. too; to

11. The war was over about three months ago, ______ the American soldiers in Iraq are still having a lot of trouble to deal with. A. or B. and C. but D. so

10.　　　 -Which sweater do you prefer, the yellow one or the pink one?

　-______. I like a light blue one.

　A. Either B. Both C. Any D. Neither

9.　　　　　　 Jim has made many friends since he ______ to China.

　A. came B. comes C. has come D. will come

8.　　　　　　 Which is ______ to learn, fishing or swimming?

　A. easy B. easier C. the easier D. more easily

7.　　　　　　 We should keep ______ in the reading –room.

　A. quiet B. quietly C. quite D. quickly

6.　　　　　　 The old woman kept one black dog and two white ______.

　A. one B. ones C. those D. one’s