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          She says that she’ll have to close the shop ________ business improves.(2013·江西，28)
          A．ifB．unless
          C．a(chǎn)fterD．when
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B
          解析　本題考查狀語從句的引導詞。句意為：她說，除非生意好轉(zhuǎn)，否則她只能關(guān)掉店鋪。if如果；unless除非，如果不……；after在……之后；when當……的時候。根據(jù)句意，B項符合題意。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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