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_________ around the Water Cube，we were then taken to see the Bird’s Nest for the 2008 Olympic Games．

　　A．Having shown　

　　B．To be shown

　　C．Having been shown

　　D．To show

________ around the Water Cube，we were then taken to see the Bird’s Nest for the 2008 Olympic Games.

A．Having shown 　　　　　　　 B．To be shown

C．Having been shown 　　　　 D．To show

        around the Water Cube，we were then taken to see the Bird’s Nest for the 2008 Olympic Games.  

A. Having shown                           B. To be shown

C. Having been shown                   D. To show

　　　　　 around the Water Cube， we were then taken to see the Bird’s Nest for the 2008 Olympic Games.?

A.Having shown　　　 B.To be shown　　 C.Having been shown　　 D.To show

　　　　　 around the Water Cube， we were then taken to see the Bird’s Nest for the 2008 Olympic Games.?

A.Having shown　　　　　 B.To be shown?　　　　

C.Having been shown　　 D.To show