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          We were playing near the lake______ the storm started.
          A．whileB．whenC．untilD．before
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B 

          試題分析：句意：我們在湖邊玩的時候，這時風(fēng)暴起來了。When可以和過去進(jìn)行時連用，表示“過去正在發(fā)生某事…這時…，”while當(dāng)…時候，表示“一段時間”，until“直到”，before“在…前面”，所以選B。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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