问题补充：
The opening ceremony of Beijing Olympics is a great success, which is believed the Chinese splendid civilization.
A. having been displayed
B. to have displayed
C. to be displayed
D. displaying
答案：
A. having been displayed
(答案→)B. to have displayed
C. to be displayed
D. displaying
解析：考查不定式做宾语，句意：北京奥运会的开幕式是一件成功的事，被认为已经展示了中国出色的文化，展示的动作发生在谓语动词之前，所以用不定是的完成式，选B。
