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				 He is absent      is often the case.    A. what     B. which    C. who     D. as			【查看更多】
			


		
           
          


		
          
		
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            He is absent ____ is often the case.
            
           A. what              B. which               C. who                D. as
          

			
          
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          He is absent, ____ is often the case.
            
          A. what 　 B. which 　 C. who 　 D. as
              
           
          

			
          
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           He is absent ____ is often the case.
          


          
 
          
  
  
          A．what
          
            		
  
  
          B．which
          
            		
  
  
          C．who
          
            		
  
  
          D．a(chǎn)s
          
            		
 
          

          


           
          

			
          
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          ________ is often the case, he is absent again．
          

          

          [　　]
          

          A．What
          

          

          B．Which
          

          

          C．Who
          

          

          D．As
          

          

          

			
          
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