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				11．A．Yes, it is．           B．No,  it isn't．             C．Not  clear．			【查看更多】
			


		
     
    


		
    
		
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    －Is that girl your friend?
    

    －________
    

    

    [　　]
    

    A．Yes, it is．
    

    

    B．No, she isn't．
    

    

    C．Yes, I am．
    

    

    

			
    
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    —Is this your eraser?    —______.   
    A．Yes,it isn’t B．No,this isn’t C．No,it isn’t D．Yes,this is 
    

			
    
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    ---Is this box heavy or light? 
              ---_____.
      　　  A．Yes, it is　        B．No, it isn't 
      　　  C．It's  light.        D．Yes, it's heavy
    

			
    
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    — Isn't it next to the library?
    

    — ________
    

    

    [　　]
    

    A．Yes,it isn't
    

    

    B．No,it is
    

    

    C．Yes,it is
    

    

    D．Yes,she is
    

    

    

			
    
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    —Meat isn’t really dangerous, is it? 
    —Oh! _________! It’s not at all good for our health. 
    A．Yes, it isn’t    B．No, it is　　　 　　  C．Yes, it is  　　D．No; it isn’t
    

			
    
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