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          Mr. Zhang ________ as an engineer since he came to the computer company in 2008.
          A．works B．worked C．has worked D．had worked 
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          C
          

          解析試題分析：句意：自從張先生在2008年來到這個電腦公司，他就是一名工程師了。分析考查固定句型：主句（運用現(xiàn)在完成時）+since+從句（一般過去時），主語是單數(shù)第三人稱，因此助動詞為has.故選C 
          考點：考查時態(tài)的用法。  
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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