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				 At this time of a year, the farmers are very busy         apples.  A. pick         B. picking              C.  picked        D.  to pick			【查看更多】
			


		
           
          


		
          
		
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          At this time of a year, the farmers are very busy _____ apples. 
          

          [     ]
          A. pick 
          B. picking
          C. picked 
          D. to pick 
          

			
          
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          At this time of a year, the farmers are very busy ________ apples．
          

          

          [　　]
          

          A．pick
          

          

          B．picking
          

          

          C．picked
          

          

          D．to pick
          

          

          

			
          
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