13. -Please turn off the TV set. I want to sleep.

-What? You are upstairs. I don’t know _______ it can trouble you.

A. how

B. which

C. whether

D. when

12. But for the traffic jam, I _______ to school earlier.

A. could come

B. could have come

C. might come

D. had come

11. -Dad, we have been invited to uncle Tom’s birthday this Saturday evening.

-Please remind me again _______ I forget it.

A. even if

B. in case

C. as if

D. what if

10. With the aid of this new research, those affected by joint pain could choose an _______ treatment besides pain killers.

A. alternative

B. automatic

C. equal

D. abstract

9. While _______ as a volunteer at the Beijing Olympics, she made friends with the famous tennis player.

A. being served

B. serving

C. having served

D. served

8. -What do you think of the apple pie? I _______ it myself.

-Very delicious indeed. Even my mother’s can’t match this.

A. made

B. make

C. had made

D. was making

7. Your own family is likely to be _______ in its remark about you.

A. random

B. outspoken

C. optional

D. noble

6. People had _______ more freedom and all people considered _______.

A. fairly; equal

B. far; equal

C. fairly; equally

D. rather; equally

5. They met last night to _______ any remaining doubts.

A. clear up

B. keep up

C. stay up

D. make up

4. Tom lost his job a year ago. _______ , he would be _______ by another factory as a worker.

A. Luckily; taken in

B. Fortunately; taken over

C. Hopefully; taken on

D. Definitely; taken up