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---Is that Lucy’s sister, Lily?
---No, it _______ be her. She has gone to English.
A.couldB.canC.can’tD.mustn’t
C

试题分析:could,can的过去式,能,可能;can能,可能;can’t不可能;mustn’t禁止。句意:丽丽,那是露西的姐姐吗?——不,不可能是她。她已经去了英国。结合语境可知选C。
点评:情态动词的考查是初中英语考查的重点,平时学习中一定要熟记这些词的基本词义及用法上的不同,注意其用法及在句子中表达语气的不同。考试中结合语境选择合适答案。
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