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    Tom was absent from school today. We guess he . A. must have overslept B. could have been overslept C. should have overslept D. ought not to have overslept 【查看更多】

     

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    Tom was absent from school today. We guess he       .

    A. must have overslept               B. could have been overslept

    C. should have overslept             D. ought not to have overslept

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