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          精英家教網 > 初中英語 > 題目詳情
          
			
          
				
          While my mother________ some washing, I was making  a kite for Mary. 
          A．didB．was doingC．is doingD．does
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B
          while引導的時間狀語從句常用進行時態(tài)。表示兩個動作同時進行。媽媽做飯時，我正在給瑪麗做風箏。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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