Scienceandtechnologyhaveinimpo

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更新 2022-09-03
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挑错有奖

Science and technology have ____in important ways to the improvement of agricultural production.

A．attached

B．assisted

C．contributed

D．witnessed

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He ___ at the enemy, without saying a word.

A．shouted

B．stared

C．called

D．arrived

题型：未知
难度：未知

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She didn't answer the phone.She ___ be asleep.

A．couldn't

B．mustn’t

C．might

D．had to

题型：未知
难度：未知

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___ people gather there, talking about the film about Comrade Lei Feng.

A．A great deal of

B．The large amount of

C．The number of

D．A great many

题型：未知
难度：未知

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I can't remember where I have put that book.Maybe they are ___ which one is not correct.

A．missed

B．lost

C．gone

D．missing

题型：未知
难度：未知

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More than one student ___ that experiment.

A．has finished

B．have finished

C．are finishing

D．were finishing

题型：未知
难度：未知

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