There have been several new events to the program for the Beijing Olympic Games. A.

问题补充：

There have been several new events to the program for the Beijing Olympic Games.

A. add

B. to add

C. adding

D. added

答案：

A. add

B. to add

C. adding

(答案→)D. added

解析：由于add与其前的new events为被动关系，所以要用过去分词。

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