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           It took more than twenty years for the great artist       _the painting was finished completely.
          A．a(chǎn)sB．beforeC．a(chǎn)fterD．when
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B

          試題分析：句意：在這幅繪畫完全完成之前，花費了這位偉大的藝術(shù)家20多年的時間。As作為； before在……之前 ；after在……之后 ；when當……時候，選B。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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