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				 A. sing        B. singing       C. sings        D. sang			【查看更多】
			


		
     
    


		
    
		
    題目列表(包括答案和解析)
    

		
		
    

    


    
	
    				
    
									
    
I heard him ______ a song when I went into the room.
     
[    ]
    
　　A. sings   B. sang   C. singing   D. to sing
    

			
    
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    I heard him______ outside.
    


    
 
    
  
  
    A．sang
    
      		
  
  
    B．to sing
    
      		
  
  
    C．singing
    
      		
  
  
    D．sings
    
      		
 
    

    


     
    

			
    
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    My best friend is good at ________.
    


    A. sing              B.
sings                        C.
singing                D.
sang
    


     
    

			
    
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    I often heard her            in the room.
      
    A. sing           B. sang          C. singing         D. sings
    

			
    
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    Listen! I heard Tom______ in the next room.
    

    [     ]
    A. sing               
    B. sings             
    C. sang              
    D. singing
    

			
    
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