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				42．Qingzang  Railway            two years ago. Now more and  more people enjoy going to Tibet  by train.    A．is  built         B．has  been built   C．was  built        D．will be built			【查看更多】
			


		
     
    


		
    
		
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    Qingzang Railway ____ two years ago. Now more and more people enjoy going to Tibet by train. 
      
    A．is built      B．has been built   C．was built   D．will be built
    

			
    
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