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    Are you still here? You were here an hour ago. Who for? A. are you waiting B. did you wait C. were you waiting D. do you wait 【查看更多】

     

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    Are you still here ? You were here an hour ago . Who ________ for?    
    [     ]
    A. are you waiting        
    B. did you wait    
    C. were you waiting      
    D. do you wait

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