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          Most probably it will be another 7 hours _____ you can have next meal, so each of you must have your stomach full.
          A．sinceB．whenC．a(chǎn)fterD．before
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          D

          試題分析：固定句式：It be 一段時間 before…一段時間以后某事才發(fā)生；如果before后面使用一般現(xiàn)在時，前面的主語使用將來時；如果before后面使用一般過去時，前面也使用一般過去時；句義：很可能7小時以后你們猜能吃下一頓飯，所以現(xiàn)在你們必須把肚子吃飽。故D正確。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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