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				 -Computers are used in every walk of life mow.                   -Bat only in recent years       to use personal computers.                   A. when people have started        B. when have people started            C. people have started          D. have people started			【查看更多】
			


		
           
          


		
          
		
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          —Computers are used in every walk of life mow.        
              —Bat only in recent years _____ to use personal computers.         
             A. when people have started          B. when have people started     
             C. people have started               D. have people started     
           
           
          

			
          
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