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19.-Where is Lucy?
-I can't say for sure where she is,but she _______ be out shopping.(  )
A.canB.shouldC.mustD.may

分析 --Lucy在哪里?--我不能确定,但是她也许出去购物了.

解答 答案是D.本题考查情态动词的辨析.can能够;should应该;must肯定;may也许;根据句意"I can't say for sure不能肯定"推测说话人认为"她也许去购物了",故答案选择D.

点评 要在正确理解情态动词的基本含义的基础上,整体理解语境中的情感态度,做出合理的判断.

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