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    He play the piano now, but he play it one year ago. A .couldn't; can ; couldn't C. can; could D. could; can 【查看更多】

     

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    He _____ play the piano now, but he _____ play it one year ago.
    [     ]
    A. couldn't; can
    B. can; couldn't
    C. can; could
    D. could; can

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