29. During the holidays I shall help my father .

　　A. with working B. with his work C. for work D. for working

　　30. —Where on earth do we get light and heat?

　　—It is from the sun we get them.

　　A. which B. on which C. where D. that

　　31. It’s about time that this problem .

　　A. to settle B. should be settled C. be settled D. to be settled

　　32. A person a foreign language must be able to use the foreign language

　　all his own.

　　A. learning, forgetting B. who learns, to forget

　　C. to learn, to forget D. using, but

　　33. Einstein was given the Nobel Prize Physics in 1921.

　　A. in B. at C. on D. for