36. We should do something to stop sandstorms ______ happening again and again.
A. from B. on C. by D. to
35. This story happened _______ the last few years.
A. at B. since C. during D. for
34. Mr Wang is very strict. His students are afraid _______ him.
A. at B. of C. about D. to
33. She likes reading _______ many different subjects.
A. of B. at C. on D. in
32. Have you got any books _______ science?
A. at B. about C. of D. in
31. –What do you think of the report on the UFOs?
--Great! Many students were interested in it and they kept on standing ______ the end of the meeting.
A. until B. in C. at D. by
30. The woman feels worried _______ her sick baby.
A. for B. to C. on D. about
29. It’s very nice ______ you to get me two tickets _______ the World Cup.
A. for; of B. of; for C. to; for D. of; to
28. Man landed on the moon in 1969 for the first time. Have you ever heard ______ it?
A. on B. to C. of D. from
27. You must stand _______ line when you are waiting _______ a bus.
A. on; in B. in; for C. in; on D. on; for