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				15．My mother was  cooking while I         the radio. A．listened  to      B．have listened to   C．was  listening to  D．is listening to			【查看更多】
			


		
           
          


		
          
		
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          My mother was cooking while I      the
radio.
          


          A．listened to                            B．have listened
to
          


          C．was listening
to                         D．is listening
to
          


           
          

			
          
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          My mother was cooking while I____ the radio.
          


          
 
          
  
  
          A．listened to
          
            		
  
  
          B．have listened to
          
            		
  
  
          C．was listening to
          
            		
  
  
          D．is listening to
          
            		
 
          

          


           
          

			
          
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