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7.-Sophia described every detail of the accident just now.
-Her memory ______ be completely back,then?(  )
A.shallB.mightC.couldD.must

分析 ---索菲娅刚刚描述了事故的每一个细节.
---她的记忆一定完全恢复,那么?

解答 答案:D.
根据上文句意"索菲娅刚刚描述了事故的每一个细节"可知"她的记忆一定完全恢复.这里考察的是表示肯定的推测的情况.must必须,偏偏,表推测时,意为"一定是、准是";shall 1.用在问句中表示征求对方意见,主要用于第一、第三人称.2.用于陈述句中的第二、第三人称,表示说话人的意图、允诺、警告、命令、决心等.3.用在条约、规章、法令等文件中表示义务或规定,一般用于第三人称;might 或许,可能,可以;could是"can"的过去式,能够,打算,通常用于假设语气的条件句和虚拟语气的主句中.在这四个词中must所表示可能性最大,故选D.

点评 本题考察情态动词的用法.要理解句意,掌握好各个情态动词的用法.充分利用语境,注意分清各个情态动词适用的句型,得出答案.

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