We should return the books to the library _____ time . [ ]A. about

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We should return the books to the library _____ time .      [     ]
A. about
B. on
C. by
D. for

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举一反三

It is impolite to_____those persons in trouble.      [     ]
A. laugh to
B. laugh with
C. laugh of
D. laugh at

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She was born _____ the morning of May12th, 1998.[     ]
A. in
B. on
C. at
D. for

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They want to buy a house _____ a garden .      [     ]
A. have
B. has
C. with
D. there are

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The umbrella is used ______ us away from the rain.      [     ]
A. to keeping
B. for keeping
C. keep
D. for keep

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He was stopped by the rain the trees.[ ]
A. to plant
B. to planting
C. for planting
D. from planting

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