30. In order to ____ the debt, the couple has worked hard for years with little food and only a small room to live in and never a moment's rest.

A. pay for　 B. pay back　 C. pay　 D. return back

29. ---What do you think of my suggestion?

--- Sorry. What's that? I ____ about something else.

A. thought B. am thinking　 C. was thinking D. had thought

28. In my opinion, all Mr White ____ good to his students in his class at present. He is very strict in their study.

A. does does doesB.does did do C.does does do D.did do does

27. Never did we have to play "stand up", "sit down", "speak out". I don't ____ one student who didn’t try his best.

A. hear from　 B. feel like C. think about　 D. know of

26. The professor has received the letter ____ to give a lecture in ftinceton Institute.

A. being invited B. to be invited C. inviting himD. invited

25. Could it be in the restaurant in ____ you had dinner with me yesterday ____ you lost your handbag?

A. that; whichB. which; thatC. where; thatD. that; where

24. The man, ____ legs were badly hurt by a ______worker, was____to hospital at once.

A. whose; careless; taken　 B. his; careless; sent

C. whose; carelessly; sent　 D. his; carelessly; taken

23. No sooner had he got home than he ____his coat and sat down at the table.

A. threw off　 B. threw out　 C. threw about　 D. threw sway

22. You ____ pay too much attention to your reading skill. It's so important.

A. cannot　　 B. should　　　 C. must　　 D. needn't

21. ---You don’t seem to be quite yourself today. What’s wrong?

　 --- Oh, I'm suffering from a cold. Nothing serious, ____.

A. though　　　 B. yet　　 C. indeed　 D.anyway