around the Water Cube we were then taken to see the Birds’ Nest for the Olympic Game

问题补充：

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

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

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