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				Some birds    to  the south before winter.A.   run         B. swim      C. walk      D. fly			【查看更多】
			


		
           
          


		
          
		
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          Some birds ________ to the south before winter. 
          


          A. run
          


          B. swim
          


          C. walk
          


          D. fly
          

			
          
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          Some birds               to the south before winter.
          

          [     ]
          A．run 
          B．swim 
          C．walk 
          D．fly 
          

			
          
				查看答案和解析>>
			
          
		
          
				
          
									
          

          Before winter, some birds ________ to the south. 
          


          A. run
          


          B. swim
          


          C. walk
          


          D. fly
          

			
          
				查看答案和解析>>
			
          
		
          
						
          
				
          
	
          
	
          
		
          


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