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				18．When he was a child.he         swim in this river．   A．uses to  B．doesn′t use to   C．used to       D．was used to			【查看更多】
			


		
           
          


		
          
		
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          When he was a child，he _______ swim in this river．
            
          A．uses to    B．doesn′t use to     C．used to           D．was used to
          

			
          
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