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          I'm sorry you've been waiting so long，but it'll still be some time ________ Brian gets back.(2008·北京)
          A．beforeB．sinceC．tillD．a(chǎn)fter
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          A
          考查狀語從句。本題使用了“it be＋一段時(shí)間＋before引導(dǎo)的從句”句型，表示“在……之前還需要一段時(shí)間，一段時(shí)間之后發(fā)生某事”。后面句子的含義：不過Brian還要過一會(huì)兒才能回來。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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