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—Have you invited Alice to our party?
—Yes. But she _____ come; she is busy nowadays.
A.must notB.might notC.should not D.need not
B

试题分析:句意:--你邀请爱丽丝来参加聚会吗?—是的,她可能来不了,因为她最近很忙。must not禁止;might not也许不;should not不应该;need not不用,不必。根据句意故选B。
点评:本题难度适中。情态动词是高中阶段的重难点之一,需要考生熟记它们的用法,在各类考试中经常出现,情态动词的完成式主要用于表示对过去情况进行推测或责备也是高考常考的内容。
即学即练:We _____ have worried about the math exam. It was a piece of cake.
A. must not     B. might not            C. should not       D. need not
解析:D。句意:我们本不必担心数学考试,实际上很容易。
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