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          She says that she'll have to close the shop ________ business improves.
          A．ifB．unlessC．a(chǎn)fterD．when
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B

          試題分析：考查連詞：A. if如果，B. unless除非，如果不，C. after在…后面，D. when當(dāng)…時(shí)候，句意：她說她將不得不關(guān)掉商店，如果生意沒有改善的話。選B。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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