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You _________ be hungry yet;you had a big cake only an hour ago.?
A.may not B.mustn’t C.can’t D.needn’t ?
C?
本题主要考查情态动词的用法。根据后面句子中的had a big cake only an hour ago可知,前面句子是表示对情况的很有把握的推测,即“你一定不怎么样”“一定不”表推测时用can’t而不是mustn’t。故选C。
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