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           Steve was busy clearing the cups and dishes from the table ________ others were playing.
          A．untilB．if
          C．sinceD．while
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          D
          D考察連詞。While在…期間；后面要接延續(xù)性動詞或者表示狀態(tài)的動詞。故D正確。Since意為自從，引導時間狀語從句，從句使用一般過去時。If如果，until直到.
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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