问题
选择题
________ 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
答案
答案：C
考查非谓语动词作状语。Show和逻辑主语we之间是动宾关系，所以要用被动形式，排除A,D;且show这一动作发生在主句谓语动词take之前，所以要用非谓语动词的完成时，选C.