Nowadaysscientistsareworkingha

更新 2022-09-03
科目英语
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挑错有奖

Nowadays scientists are working hard to find out ______ to do with air pollution.

A．how

B．why

C．when

D．what

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Never stand up ________ you are asked to.

A．if

B．since

C．unless

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____ Lily ______ Lucy may go with you because one of them must stay at home.

A．Not only ... but also	B．Both ... or
C．Both ... and	D．Either ... or

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Which _______ your brother ________, apples or bananas?

A．does; prefer

B．would; rather

C．does; prefer to

D．would; rather than

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Andy has __________for five years. Five years _______ a long time.
A .left home, is B. been away from home, is
C. left home, are D. been away from home, are

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---Look! It ________be Mrs. Smith.
---It _________be her. She has just gone to Shanghai.

A. can; mustn’t B. must; can’t . must; mustn’t D. can’t; must

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