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          The volunteers __ a lot of help to the community for nearly ten years.
          A．offeredB．will offerC．a(chǎn)re offeringD．have offered
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          D
          本題難度適中，考查現(xiàn)在完成時(shí)，由for nearly ten years.可知是用現(xiàn)在完成時(shí)，選D答案。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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