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				 ― Will Sam go swimming with  us tomorrow?  ― I think he will  go if he        free.  A. be           B.  was             C.  is          D.  will be			【查看更多】
			


		
     
    


		
    
		
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    －Will Sam go swimming with us tomorrow?
    

    －I think he will go if he ________ free．
    

    

    [　　]
    

    A．be
    

    

    B．was
    

    

    C．is
    

    

    D．will be
    

    

    

			
    
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