You ______ be hungry already--- you had lunch only two hours ago!
A．mustn’tB．wouldn’t
C．can’tD．needn’t
C

試題分析：句意：你不可能餓了吧—你剛剛才吃了兩個小時。mustn’t禁止；wouldn’t不情愿；can’t不可能；needn’t不必。根據(jù)句意故選C。
點評：本題難度適中。情態(tài)動詞是近幾年高考的熱點，它們的用法非常多，需要考生平時多做練習加以鞏固。這里需要區(qū)分它們的用法及意義。
即學即練：It was fine that day, so I ______  have brought an umbrella with me.
A. mustn’t        B. wouldn’t
C. can’t          D. needn’t
解析：D。句意：那天天氣很好，我原本不必帶傘的(但卻帶了)。
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