5. at a time

4. be lost to　　　

3. made the acquaintance of

2. had nothing to do with

15. He sat there silently, not　 _______ what to do.

A. knew　 　　　　　 　　 B. knowing　　

C. to know　　 　　　　　 D. know

14. It is such a good place _______　 everyone wants to visit 　_______ it is well-known all over the world.

A. which; that　 　　　　　 　　B. as; as　　

C. as; that　　 　　　　　　　　 D. that; as

13. Helen had to shout　 _______ above the sound of the music.

A. making herself hear　 　　　 B. to make herself hear

C. making herself heard　 　　　 D. to make herself heard

12. In America,a restaurant or bar bill is called a check, _______ a bill.So at the end of your meal you would ask,“May I have the check,please?”

A. instead　　 　　　　　　　　 B. rather than　　

C. other than　　 　　　　　　　 　　D. now that