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          How can you expect him to make any progress ________ you never give him a chance to have a try?
          A．whenB．unless
          C．even thoughD．until
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          A
          A　[when 表示條件，意思接近“在……情況下”。]
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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