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    –You must have stayed up late last night, ? –You are right. I was watching Korean plays all night long. A. mustn’t you B. haven’t you C. didn’t you D. hadn’t you 【查看更多】

     

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    —You must have stayed up late last night , ____.    
    — You are right. I was watching Korean plays all night long.        

    [     ]
    A. mustn't you                        
    B. haven't you      
    C. didn't you                        
    D. hadn't you

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