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          The mobile phone has influenced people's life a lot since it __________.
          A．invents
          B．invented
          C．is invented
          D．was invented
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          D
          結(jié)合本題場景以及主句的時(shí)態(tài)可知，從句要用一般過去時(shí)的被動(dòng)語態(tài)。故答案為D。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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