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-IsTomswimminginthepool,Mary?--It

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問題詳情:

-IsTomswimminginthepool,Mary?--It

-Is Tom swimming in the pool, Mary?

--It ______ be him. I saw him in the supermarket just now.

    A. must   B. may    C. can’t    D. need

【回答】

C

知識點:情態動詞

題型:選擇題