阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
Love, wealth and opportunities ------ parents try __1__ (they) best to leave possessions (财产) for their kids, whether they are rich __2__ poor. But Mark Zuckerberg, the founder and CEO of the social media giant Facebook, has something __3__ (large) in mind.
On Dec. 1, Zuckerberg, 31, announced the birth of his first child and the start of the Chan Zuckerberg Initiative, __4__ organization for helping people in need. To make the world a better place for their kids __5__ (grow) up in, Zuckerberg said he and his wife, Priscilla Chan, would give away 99 percent of their Facebook shares (股份) __6__ now are worth $45 million to good causes.
However, the shares will not be donated to the organization __7__ (immediate), but over the course of the couple's lives.
The __8__ (announce) was presented as a letter __9__ (write) by the couple to their new baby girl, Max.
According to the letter, the Chan Zuckerberg Initiative __10__ (help) realize "human potential" and "equality for all children in the next generation".
