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          My best friend visited my house while I __   __ dinner in the kitchen.
          A．cookB．cookingC．cookedD．was cooking
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          D
          本題考查時態(tài)。While引導(dǎo)的時間狀語，從句用一般過去時，主句用過去進(jìn)行時。故選D。句意：當(dāng)我正在廚房做飯的時候，我最好的朋友來拜訪我。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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