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          It’s foggy today. I’m not sure             the highway will close soon. Let’s set off earlier.
          A．whetherB．whenC．howD．why
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          A
          

          解析試題分析：句意今天有霧。我不知道是否高速公路不久就會關(guān)閉。讓我們早點動身。A. whether 是否； B. when 什么時候；C. how 怎樣；D. why為什么；故選A。
          考點：考查引導(dǎo)詞的用法。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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