31. Unless __ to speak, you should remain silent at the conference.

　　 A. invited　　　　　　 B. inviting　　 C. being invited　　　 D. having invited

30. --Oh, it's you!　 I _______　 you.

　　 --I've just had my hair cut, and I'm wearing new glasses.

　　 A. didn't recognize　　　　 B. hadn't recognized

　　 C. haven't recognized　　　 D. don't recognize

29. _______ from the hill, I find that the little village is beautiful.

　　 A. Seen　　　　　 B. To see　　 C. Being seen　　 D. Looking

28. She is often heard _______ 　English aloud in the morning.

　　 A. read　　　　　　 B. to read　　 C. having read　　 D. to be reading

27. She still remembers _______ to swim in a river when she was eight.

　　 A. to take　　　　 B. being taken　　 C. taking　　　　 D. taken

26. The village is the place _______ I spent my childhood.

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

25. Our school lies _the east of the city, _______ lies on a railway.

　　　 A. to; that　　　　 B. on; which　　 C. on; that　　　　 D. in; which

24. I found _______　 necessary　 _______ us to learn a foreign language well.

　　　 A. it is; for　　　 B. it was; for　　　 C. this; for　　　 D. that; of

23. She can do nothing but _______ away.

　　　 A. go　　　　　　　　　 B. to go　　 　　C. going　　　　　　　 D. to have gone

22. The bridge is in poor condition, so it needs _______

　　　 A. to repair　　　　　 B. repaired　　　 C. repairing　　　　 D. repairs