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          Great changes _______over the years．
          A．took placeB．was taken place
          C．have taken placeD．happened
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          C
          考查時(shí)態(tài)。句子中有over the years，故用現(xiàn)在完成時(shí)。而take place沒(méi)有被動(dòng)語(yǔ)態(tài)，故選C。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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