Oldest because if older is older than the youngest it still may not be the oldest. There for the oldest would make the most sense. Because it is implying the oldest child. Not the middle child or anything in between
Frair Laurance he knew about their secret marriage and helped plan it.
<em>"Zoos and wildlife parks are places where we can protect species that are in trouble, so they don’t disappear from the Earth completely."</em> This statement shows the author's point of view about why the animals need zoos. And this is the author's point of view of why we need zoos, <em>"Zoos give people the opportunity to see animals in person, often up close, to watch them, realize how alike we are in many ways, to understand them, and to appreciate them." </em>