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You be tired--you've only been working for an hour.A.must notB.won'tC.ca

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You be tired--you've only been working for an hour.A.must notB.won'tC.ca

You ______ be tired--you've only been working for an hour.

A.must not

B.won't

C.can't

D.may not

试题答案

C

解析:

根据题意,这里表示“不可能”。may, must表推测时,常常用于肯定句,不用于否定句、疑问句。如果需要,否定句、疑问句中常用can。另外,may not表示“可能不”的意思。