◎ 题干

. Tracy has gone abroad for further study. It ____ be her. The girl you saw yesterday is her sister.
A.mayB.shouldn’tC.mustD.can’t
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“. Tracy has gone abroad for further study. It ____ be her. The girl you saw yesterday is her sister.A.mayB.shouldn’tC.mustD.can’t…”主要考查了你对  【虚拟语气】【情态动词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。