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				 Anna is often heard       songs in her room.            A. sung     B. singing    C. sing     D. to sing			【查看更多】
			


		
           
          


		
          
		
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            Anna is often heard ______songs in her room.                             
            
                 A. sung              B. singing           C. sing              D. to sing
          

			
          
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           Anna is often heard ______songs in
her
room.                            
          


          
 
          
  
  
          A．sung
          
            		
  
  
          B．singing
          
            		
  
  
          C．sing
          
            		
  
  
          D．to sing
          
            		
 
          

          


           
          

			
          
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