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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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