Scientistsalotofexperimentsona

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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

Scientists _______ a lot of experiments on animals, hoping to find and effective way to cure the patients who had AIDS.

A．carried on

B．carried out

C．carried away

D．carried off

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While other scientists are keeping____eye on changes in the H5N1 bird flu strain, the scientists in England are working on vaccines, in case it becomes highly infectious in ____humans.

A．a , /

B．an, /

C．the, an

D．an, the

题型：未知
难度：未知

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---John, there is ______ Mr. Wilson on the phone for you.
---I'm in ______ bath.

A．a; the

B．the; a

C．a;不填

D．the;不填

题型：未知
难度：未知

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The teacher, with 6 girls and 8 boys of her class, _______ visiting a museum when the earthquake struck.

A．was

B．were

C．had been

D．would be

题型：未知
难度：未知

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All the employees except the manager ______to work online at home.

A．encourages

B．encourage

C．is encouraged

D．are encouraged

题型：未知
难度：未知

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____with the size of the whole earth , the biggest ocean does not seem big at all .

A．Compare

B．When comparing

C．Comparing

D．When compared

题型：未知
难度：未知

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