33. Only when I left for America ____________ how much I missed my parents.

A. I realized　　　　 B. did I realize　　　　 C. I had realized　　 D. had I realized

32. Tina apologized ______ her mother _________ breaking her favourite necklace.

A. for; to　　　　　 B. to; for　　　　　　　 C. at; for　　　　　 D. to; about

31. Making friends is sometimes hard _________ when you don’t know what to say.

A. specially　　　　 B. extremely　　　　　 C. especially　　　 D. finally

30. They did the experiment in the lab _______ was named after Professor White.

A. where　　　　　 B. which　　　　　　　 C. the one　　　　 D. what

29. We must do something to ________ the factories sending out poisonous gases so as to keep

the city clean and beautiful.

A. keep　　　　　 B. protect　　　　　　 C. permit　　　　　 D. prevent

28. They will move to a new apartment next month. It is _________ the one where they are living now.

A. twice the size of　 B. twice as bigger as　 C. twice the size as　 D. twice as bigger than

27. As we know, the 2010 Word Cup _______ in South Africa on June 11, 2010.

A. takes place　　　 B. took place　　　　 C. is taken place　　 D. was taken place

26. ---- Liu Qian has just come back from Canada and she looks very excited.

　 ---- She ________ her trip very much. ^ks5*u

A. should have enjoyed　　 B. might enjoy　　 C. must enjoy　　 D. must have enjoyed

25. The meeting started at ten o’clock, but the chairman has not _________ yet.

A. turned up　　　 B. turned down　　　　 C. turned out 　　　D. turned off

24. _________ impressed the visitors was _______ the trees were so tall in Vancouver.

A. that; that　　　 B. what; what　　　　 C. what; which　　　 D. what; that