There have been several new events (项目) _____ to the program for the 2008 Beijing Olympic Game[ ]

下列各句中加点的成语使用不恰当的一项是( )

_________ its positive or negative effect, change can be stressful.

is the result of the survey—15% of those surveyed worry that in the long termchildren _________ be more dependent on their parents, which does no good to them

We believe the time and hard work _______ in completing such an important project are worthwhile.