There have been several new events___ to the program for the 2008Beijing Olymoic Games.A.add   B.to addC.adding  D.added

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There have been several new events___ to the program for the 2008Beijing Olymoic Games.A.add   B.to 

There have been several new events___ to the program for the 2008Beijing Olymoic Games.A.add   B.to addC.adding  D.added
There have been several new events___ to the program for the 2008Beijing Olymoic Games.
A.add   B.to add
C.adding  D.added

There have been several new events___ to the program for the 2008Beijing Olymoic Games.A.add   B.to addC.adding  D.added
D
因为主句是现在完成时
表示已经发生了,所以用D
如果是正在发生,就可以用C

选D
主句是There have been several new events for the 2008Beijing Olymoic Games.
added to the program作new events 的定语
又因为new events和program是主谓关系
(主谓关系这题中指新项目是被加入北京奥运会项目中的)
所以选added