28.Get the car thoroughly checked, I want to be ____ worry on the trip.

A. for free　　 B. of free　　 C. free of　　 D. free from

27. The ____ boy was last seen____ near the west lake.

A. missing; playing　 B. missing; play　 C. missed; played　 D. missed; to play

26. The hospital is looking for people willing to ____ their organs.

A. supply　 B. offer　 C. donate　　 D. show

25. I ____ a company last year and now it _____ along well.

A. ran; got　 B. runs; is getting　 C. has run over; got　 D. ran; is getting

24. She ____ in the country, but now she ____ in a city.

A. used to live; used to living　　　　 B. used to live; is used to living

C. was used to live; is used to living　 D. used to live; was used to living

23. The house is too old; it requires ____.

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

22. --- Have the papers been corrected?

　 --- Yes, but I regret ____ that you failed.

A. to say　　 B. saying　　 C. in saying　 D. I say

21. He seems to ___ Jane. He knows her well.

A. introduce to　 B. be introducing to　 C. be introduced to　 D. have been introduced to

20. Some interesting questions will probably ____ at the meeting.

A. be come up　 B. come up　 C. come out　 D. come about

19. I’ll go there by bike ____ by bus.

A. instead　 B. instead of　 C. in the place of　 D. in place of