QianXuesentriedmanytimeshefoun

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更新 2022-09-03
科目英语
题型单选题
难度中等
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挑错有奖

Qian Xuesen tried many times _________ he found the solution to the puzzle about space technology.

A．after

B．before

C．since

D．when

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____, dear! Things are getting better.

A．To cheer up

B．Look up

C．Make up

D．Cheer up

题型：未知
难度：未知

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____ surprised me most was _____ she had changed that much.

A．Which; that

B．What; that

C．That; what

D．What; how

题型：未知
难度：未知

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Having been attacked by terrorists, ____________.

A．doctors came to their rescue	B．the tall building collapsed
C．an emergency measure was taken	D．warning was given to terrorists

题型：未知
难度：未知

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These new books are a very welcome _________ to the school library.

A．addition

B．arrival

C．attitude

D．audience

题型：未知
难度：未知

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An awful accident____________, however, occur the other day.

A．does

B．did

C．has to

D．had to

题型：未知
难度：未知

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