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          ---How clean the window is ! -----Yes ! It _______ just now .
          A．has been cleanedB．was cleanedC．is cleanedD． will be cleaned
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B
          

          解析試題分析：has been cleaned（現(xiàn)在完成時）被打掃過； was cleaned（一般過去時）被打掃了；is cleaned（一般現(xiàn)在時）被打掃；will be cleaned（一般將來時）將被打掃。原句意思是：窗子多么干凈��！是啊，它剛才被打掃了。Just now是過去時的時間狀語，本句不能用現(xiàn)在完成時。故選B。 
          考點：考查動詞的時態(tài)辨析。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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