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				6．After  a long hiking.the boy was          tired to walk． A．too         B．to            C．so             D．very			【查看更多】
			


		
           
          


		
          
		
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          After a long hiking，the boy was _________ tired to walk．
            
          A．too           B．to              C．so                D．very
          

			
          
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