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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?


解析:

本題主要考查情態(tài)動詞的用法。根據(jù)后面句子中的had a big cake only an hour ago可知,前面句子是表示對情況的很有把握的推測,即“你一定不怎么樣”“一定不”表推測時用can’t而不是mustn’t。故選C。

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