◎ 题干
—Is Jessica giving us a speech this evening?
—No, it _____ be her. She _____ to Japan.
[     ]
A. must'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 …”主要考查了你对  【情态动词】【现在完成时】  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。