16. - What ever happened to Tom?

　　 - He _______ lost.

　　 A. must be　　　　　　　 B. should have got　 　 C. may have got　　　　 D. might be　　

15. - Excuse me, are you traveling by train or meeting someone here?

　 - We are _______ the four o’clock train to Boston.

　　 A. traveling　　　　　　 B. waiting　　　　　　　　　 C. taking　　　　　　　　　 D. setting

14. They were next-door neighbors for several years, during _______ time they met only twice.

　 A. which 　　　　　　　 B. that　 　　　　　　　　　　 C. what　　 　　　　　　 D. same

13. No matter how frequently ______, the works of Shakespeare always attract large audiences.

　 A. performed　　 　 B. performing　　 　　 C. being performed　 D. to be performed

12. The river beyond our school has become clean again as new measures are ______ to

prevent it ______ any further.

　 A. taken; polluting　　　　　　　　　 　　 B. taking; being polluted

　 C. taken; being polluted　　　　　　 　　　 D. taking; to be polluted

11. His behavior at the party last night seemed rather ______. Many of us were quite surprised.

　 A. out of pity　　 B. out of place　 　　　 C. out of practice 　D. out of kindness

10. I don’t remember how many years ago ______ people began to grow crops.

　 A. it was when　 　 B. it was that　　 　　　　 C. was it when　　 　 D. was it that

9. - You ought to have given them some advice.

　　 - _______, but who cared what I said?

　　 A. So I ought　　　　　 B. So ought I 　　　　　 C. So I did　 　　　　 D. So did I

8.　 All at once the light ________ and we had to feel our way downstairs.

　 A. took off　　　 B. turned off　　　 　 C. went out　　 　　　 D. put out

7. - What did you do last Sunday, Peter?

　　 - Well, I _______ to see a friend of mine, but in the end I _______ at home doing nothing.

　　 A. was going; stayed　　　　　　　　 　　 B. would go; had stayed

　　 C. went; was staying　　　　　　　　 　　　 D. had gone; stayed