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				48．I bet Mrs. Black will come to help us with the  celebration if she        too busy tomorrow.    A．is            B．will be        C．won’t be       D．isn’t			【查看更多】
			


		
     
    


		
    
		
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    I bet Mrs. Black will come to help us with the celebration if she ______ too busy tomorrow. 
    

    [     ]
    A. is
     B. will be 
    C. won't be 
    D. isn't 
    

			
    
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    I bet Mrs. Black will come to help us with the celebration if she ______ too busy tomorrow.
      
    A．is          B．will be          C．won’t be            D．isn’t
    

			
    
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    I bet Mrs. Black will come to help us with  the celebration if she ______ too busy 
        
    tomorrow.
        
           A. is                         B.  will be                  C.  won’t be               D.  isn’t
        
    

			
    
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    I bet Mrs．Black will come to help us with the celebration if she ________ too busy tomorrow．

    1. A.
      is
    2. B.
      will be
    3. C.
      won’t be
    4. D.
      isn’t
    

			
    
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    I bet Mrs．Black will come to help us with the celebration if she ________ too busy tomorrow．
    

    

    [　　]
    

    A．is
    

    

    B．will be
    

    

    C．won’t be
    

    

    D．isn’t
    

    

    

			
    
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