◎ 题干
—Is Jessica giving us a speech this evening?
—No, it _________ be her.She _________ to Japan.
A.mustn't;has gone B.mustn't; has been
C.can't; has gone D.can't; has been
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—Is Jessica giving us a speech this evening?—No, it _________ be her.She _________ to Japan.A.mustn't;has gone B.mustn't; has been C.can't; has gone D.can…”主要考查了你对  【实义动词的单数第三人称形式】【实义动词】【动词短语】  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。