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          Keys _______ opening the lock in the door.
          A. used for???????? B. are used?????? ????????????? C. are used to???? ????????????? D. are used for
           
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				【答案】
          D
          【解析】
          試題分析：句意：鑰匙是用來開門上的鎖的。A結(jié)構(gòu)不完整，故錯誤。B be used to do 被用來做……，單選項不完整，故不正確。C be used to do 被用來做···，to后加動詞原形，結(jié)合句子結(jié)構(gòu)也不正確Dbe used for doing sth,被用來做……。故選D。
          考點：考查詞義辨析。
           
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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