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
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