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           I ________ my homework while my parents ________ TV at 9 last night.
          A．did; have watchedB．had done; were watching
          C．was doing; were watchingD．would do; were watching
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          C
          

          解析試題分析：句意：昨天晚上九點鐘當我父母看電視時，我在做作業(yè)。過去進行時表示過去某一時刻正在發(fā)生和進行的動作；故選C。
          考點：考查過去進行時。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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