Sofarnolifehasbeenfoundoutside

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更新 2022-09-03
科目英语
题型单选题
难度容易
浏览 1918

So far no life has been found outside the earth, but while some scientists are actively searching for living things in outer space, others firmly believe there ____ .

A．mustn’t be	B．may not be
C．can’t be	D．won’t be

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He’s got himself into a dangerous situation ____ he is likely to lose control over the plane.

A．where

B．which

C．while

D．why

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E-mail, as well as telephone, ______ an important part in daily communication.

A．is playing

B．have played

C．are playing

D．played

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It’s high time you had your hair cut; it’s getting _____.

A．too much long	B．much too long
C．long too much	D．too long much

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Only when the war was over ____ to his home town.

A．did the young soldier return

B．the young soldier returned

C．returned the young soldier

D．the young soldier did return

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It ______ be the postman at the door. It’s only six o’clock.

A．mustn’t

B．can’t

C．won’t

D．needn’t

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