35. By the time he realizes he__ into a trap, it’ll be too late for him to do anything about it.

A. walks　 B. walked　 C. has walked　　 D. had walked

34.------Can those_____ at the back of the classroom hear me?

------- No problem.

A. seat　　 B. siting　　 C. seated　 D. sat

33. Teenagers _____ their health because they play computer games too much.

A. have damaged　 B. are damaging　 C. damaged　 D. will damage

32. How many pages have you_____ so far? Can you return the book ____ me tomorrow?

A. looked; for　 B. seen; to　 C. covered; to　 D. turned; for

31.The house rent is expensive. I’ve got about half the space I had at home and I’m paying_____ here.

A. as three times much　　　　　　　 B. as much three times

C. much as three times　　　　　　　 D. three times as much

30．John didn’t choose _____ of the ties and went away without looking at a third one.

A．many　　 　　 B．either　　　 C．all　　　　　 　 D．any

29．The key you have just got　　　 the front door.

A. is used to opening　　　　　　　 B. is used to be opened

C. is used to being opened　　　　　 D. is used to open

28．The　　 expression on her face suggested she was　　　 when she heard the news .

A amazing;　 amazed　　　　　　 B. amazed;　 amazing

C. amazed;　 amazed　　　　　　 D. amazing;　 amazing