20. It was only when I got home late in the evening, that ______ what had happened to my brother.

A. I knew　　　　　　　　　 B. I had known　　　　　 C. did I know　　　　　　　 D. had I known

19. It’s really stupid of you_____ him the news yesterday so it has been disturbing him all the time.

A. having told　　　　　　 B. telling　　　　　　　　　　 C. to tell　　　　　　　　　　　　　　 D. to have told

18. Tom, you’d better make a turn up to the old bridge as the new one ________.

A. has been built　　　 B. was built　　　　　　　　 C. is being built　　　　　 D. is built

17. －Has Alan shown up yet?

－No, not yet. I guess something _______ have come up.

A. should　　　　　　　　　 B. must　　　　　　　　　　　 C. might　　　　　　　　　　 D. need

16. －Would you mind moving over one seat so my wife and I can sit together?

－__________

A. Why not?　　　　 B. No, not at all.　　　　 C. That’s right.　　　　　 D. My pleasure.

15. Don't ______more work than you can do or you will break down.

A. take on　　　　　　　　　 　 B. take off 　　　　　　 C. take over　　　　　　　　 D. take in

14. While you were not in , a person ____ himself Jack phoned you.

A. called　　　　　　　　　　 　 B. calling　　　　　　　　 C. to call　　　　　　　　　　 D. having called