题目内容

We must finish our homework _________ time.

A. in
B. on
C. for
D. of

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My aunt has worked in a hospital _________ 1958.

A. after
B. since
C. till
D. before

We have built a bridge _________ the wide river.

A. above
B. over
C. on
D. at

Egypt is famous _________ its pyramids.

A. of
B. in
C. about
D. for

He ran a hundred metres _________ thirteen seconds.

A. at
B. by
C. with
D. in

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