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    I don’t know he will come or not. A. weather B. whether C .if D. when 【查看更多】

     

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     I don’t know ________ he will come or not.

         A. weather    B. whether    C. if    D. when

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    I don't know          he will come here or not this evening.        
    [     ]
    A. if        
    B. whether      
    C. weather    
    D. when

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