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You don''t look well . You ____ have a fever .
A.mightB.canC.shallD.should
A。
肯定句中表示猜测可用 many 或 might。这时 might 并不指过去时间,只是语气比 may 更婉转。can 表示猜测常用于否定或疑问句中,有时也可用于肯定句,表示逻辑上的可能性。如:He''s in poor health . He can be ill at any time . (他身体差,随时可能闹病。)
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