Mary _______ be in the hospital. I saw her play basketball a minute ago.
A．mustn’tB．shouldn’tC．can’tD．may not
C

試題分析：句意：瑪麗不可能在醫(yī)院，我剛才看見她打籃球了。mustn’t禁止； shouldn’t不應(yīng)該； can’t不可能； may not也許不。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(xí)加以鞏固。這里需要區(qū)分它們的用法及意義。
即學(xué)即練：Children _______play in the street.
A. mustn’t        B. shouldn’t          C. can’t         D. may not
解析：A。句意：孩子禁止在街上玩。
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