-Hi.Joan.Any idea where Tom is?-He on the playground.I saw him there playing football just now.A．shall be B．should have beenC．must be D．might have been 题目和参考答案——青夏教育精英家教网—

题目内容

—Hi，Joan.Any idea where Tom is?

—He ________ on the playground.I saw him there playing football just now.

A．shall be B．should have been

C．must be D．might have been

【解析】句意：——嗨，Joan。你知道Tom在哪里吗？——一定在操场上，我刚才看见他在操场上踢足球。must be是对现在状态的肯定推测。答案　C

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