20. Tom was _____ to go to bed when the telephone rang.

　 A. looking　 B. about　 C. going　　 D. getting

19. So I’ve included some photos, ____ will help you picture the places I talk about.

A. that　 B. which　 C. where　 D. in which

18. This type of university course is no longer ____ today’s problems.

A. relevant to　 B. concerned that　 C. connected for　　 D. kept on

17. We didn’t know you were in trouble at that time, ____ we would have given you a hand.

A. while　 B. when　　 C. otherwise　 D. therefore

16. I am really thankful that Tom ____ me in seeing the film on the stormy night.

A. frightened　 B. conveyed　 C. accompanied　 D. protected

15. I did nothing all day but ____ to my friend who I haven’t seen for almost a year.

　A. write　　 B. to write　　 C. wrote　 D. writing