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          He made a mistake, but finally he solved the problem __________ it got worse.
          A．untilB．beforeC．whenD．a(chǎn)s
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B

          試題分析：考查連詞：A. until直到，B. before在…前面，C. when當(dāng)….時(shí)候，D. as正如，因?yàn)椋S著，句意：他犯了錯(cuò)，但是在還沒(méi)有變得更糟前他最終解決了問(wèn)題。Before還可以翻譯成“在還沒(méi)有…的時(shí)候”，選B。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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