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          Great changes ________ in China since the People’s Republic of China _________ in 1949.
          A． have taken place; was founded
          B． has taken place; was founded
          C． have been taken place; founded
          D． took place; founded
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          A
          “take place”無被動語態(tài)，由since引導的從句可知主句要用現(xiàn)在完成時，所以選A。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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