33. The wolf said in a ______ voice and the scholar felt ______.

　 A. frightening, frightened　 B. frightened, frightened　

C. frighten, frightening　 　　D. frightening, frightening

32. Mother is always busy _____ her housework.

　 A. to do　　 B. do　 C. done　　 D. doing

31. ________ more time, the job can be done better.

　 A. Given　 B. Giving　　 C. To give　 D. To be given

30. This is one of the experiments _______ in our laboratory.

　 A. being made　 B. making　 C. to do　　 D. having made

29. The classroom is so dirty that it needs _______ badly.

　 A. clean　　 B. to clean　 C. being cleaned　　 D. cleaning

28. Will you mind ______ him how _______ the next step?

　 A. my telling, to take　 B. my showing, to taking

　 C. me to tell, take　　　 D. me to tell, to taking

27. I’m looking forward to _______ your reply soon.

　 A. receive　　 B. receiving　 C. accepting　　 D. get

26. To learn to swim well, _______.

　 A. much practice is needed by one　　 B. much practice is needed

　 C. one needs much practice　　　　　 D. one is needed much practice

25. They made a fire ______ up the room as soon as their leader came in.

　 A. warm　　 B. warmed　　 C. to warm　 D. warming

24. ______ the cat family, the small tiger looks like a big cat.

　 A. Being at　 B. Belonged to　 C. In　　 D. Belonging to