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				          several times, but Mary still has no idea of how to do it properly.   A. Being shown     B. Having shown    C. Having been shown D. I’ve shown her			【查看更多】
			


		
           
          


		
          
		
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           _________several times, but Mary still has no idea of
how to do it properly. 
          


          A. Being
shown               B.
Having shown              C.
Having been shown  D. I’ve shown her 
          


           
          

			
          
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           _________several times, but Mary still has no idea of how to do it properly. 
            
          A. Being shown                 B. Having shown          C. Having been shown  D. I’ve shown her 
          

			
          
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           _________several times, but Mary still has no idea of how to do it properly. 
          A．Being shownB．Having shown C．Having been shownD．I’ve shown her
          

			
          
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