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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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