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    -Are you free now? -No. I have so many chores today. A. do B. to do C. doing D. done ﹡15. -When we arrived at the hall, the meeting for just a minute. -What a pity! A. has ended B. had ended C. has been over D. had been over 【查看更多】

     

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    —Are you free now?
    —No. I have so many chores ______ today.
    [     ]
    A. do    
    B. to do      
    C. doing    
    D. done

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