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    I offered Susan the medicine for cough , but perhaps I to take it. A. had to tell her B. must have told her C. ought to tell her D. should have told her 【查看更多】

     

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    I offered Susan the medicine for cough , but perhaps I ______ to take it.

    A. had to tell her　　　　　　 B. must have told her

    C. ought to tell her　　　　　 D. should have told her

     

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