around the Water Cube we were then taken to see the Bird’s Nest.A. Having shownB. To be

问题补充：

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

A. Having shown

B. To be shown

C. Having been shown

D. To show

答案：

A. Having shown

B. To be shown

(答案→)C. Having been shown

D. To show

解析：考查分词的用法。用分词的完成时表示此动作已完成。