Global warming ________ cause huge climatic changes and possibly a new ice age.A

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Global warming ________ cause huge climatic changes and possibly a new ice age.

A．is possible to

B．may possible

C．is likely to

D．is maybe to

答案

解析

略

举一反三

—That must be a mistake.
　 —No, it _____ a mistake.

A．mustnotbe

B．needn’tbe

C．cannotbe

D．wouldnotbe

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—_____ I water the trees on Tuesday?
　 —No, you needn’t.

A．Can　　

B．Must　　

C．May　　

D．Shall

题型：不详难度：| 查看答案

He _____ not pay unless he is punished to pay.

A．shall　　

B．will　

C．can　　

D．would

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I _____ such a mistake again.

A．shallnevermake	B．maynevermake
C．canneverdo	D．needneverdo

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—_____ I turn on the radio?
　—You’d better not. It is noisy enough in this room.

A．Shall　　

B．Must　　

C．Need　

D．Do

题型：不详难度：| 查看答案