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           It is difficult for us to learn a lesson in life ______ we’ve actually had that lesson.
          A． untilB．a(chǎn)fterC．sinceD．when
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          A

          試題分析：句意：在我們的生命中，直到我們真正經(jīng)歷那一課才會學(xué)會那一課。Until直到 ……才after在…… 之后since自從when當(dāng)…… 時候，可知選A。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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