Ah. Princeton Review uses fake questions, so I don't know how much that's going to help you. Feel free to post it again and I'll edit it into the subject like it was before.
Literally every single thing you have done since Freshman year of college. Every job, every time you volunteered, every club. Start with that and then edit selectively to build momentum in your narrative.
its a school to school thing... when I was applying I had a 2 page template and then an expanded version for some schools... have a basic two page template that you can edit - and tailor it to the institution you are applying to imo.