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          _________along the quiet road at forty miles an hour, and then an old man suddenly started to cross the road in front of me.
          A．DrivingB．When I was drivingC．I was drivingD．Having driven
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          C

          試題分析： 句意：我正以每小時40英里的速度開車，這時一個老人突然出現(xiàn)在我面前過馬路。因為兩句話中間有and，所以是并列句，AD項是現(xiàn)在分詞做狀語，B是時間狀語從句，都不是并列句，選C。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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