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				28．-Who cleaned the  blackboard yesterday, Dick?- John        A．cleaned        B．does         C．did              D．is			【查看更多】
			


		
           
          


		
          
		
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          --Who cleaned the blackboard yesterday, Dick?
          

          --John ________.
          

          [　　]
          
          

          

          

          A．cleaned
          		


          B．does
          		


          C．did
          		


          D．is
          		

          

          

          

          

			
          
				查看答案和解析>>
			
          
		
          
				
          
									
          

          －Who cleaned the blackboard yesterday, Dick?
          

          －John ________．
          

          

          [　　]
          

          A．cleaned
          

          

          B．does
          

          

          C．did
          

          

          D．is
          

          

          

			
          
				查看答案和解析>>
			
          
		
          
						
          
				
          
	
          
	
          
		
          


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