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           (2013·銀川高三二模)It remains to be seen ________ this plan is practical enough to keep the project going.
          A．whether  B．how
          C．where D．when
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          A
          選A　考查主語從句。句意：這個計劃是否足夠?qū)嵱�，以使這個項目繼續(xù)下去還有待觀察。it是形式主語，真正的主語是whether引導(dǎo)的從句。whether“是否”，符合句意。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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