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          When the teacher came in, all of us _______.
          A．stopped talking B．stopped to talk C．stop talking D．stop to talk 
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          A
          

          解析試題分析：句意是：當老師進來時我們都停止了說話。根據(jù)賓語從句時態(tài)一致原則，所以stop用過去式；stop to do是開始做正在做的之外的事的意思，stop doing 是停止正在做事情。根據(jù)句意是停止不說話了，故選A。
          考點：考查動詞時態(tài)和非謂語動詞。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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