（2016•贵州）—Is that boy Tom?—It ___________ be Tom. He has gone to his hometown to visit his grandparents.

题型：单选题题类：真题难易度：普通

—Is that boy Tom?

—It ___________ be Tom. He has gone to his hometown to visit his grandparents.

A . can B . can't C . must D . mustn't

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【解析】

组卷次数：94次 +选题

举一反三

—— No, you . But you have to come back before ten o'clock.

— I had to work that evening, so I _________ go.

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