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          【題目】She and her family bicycle to work, _________ helps them keep fit.
          A. which B. who C. as D. that
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          【答案】A
          【解析】考查非限制性定語從句。句意：她和家人騎自行車去上班，這有助于她們保持健康。“____ helps them keep fit”是非限制性定語從句，該從句修飾整個主句，引導(dǎo)詞在從句中做主語，故該從句應(yīng)用關(guān)系代詞which引導(dǎo)。A選項正確。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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