Complex sentence: She attended Phillips Exeter Academy in Exeter, New Hampshire, graduating in 1997 and The Mountain School in Vershire, VT, and then attended Brown University, where she graduated with a Bachelor's degree in English.
Split into simpler sentences: She attended Phillips Exeter Academy in Exeter, New Hampshire, graduating in 1997 and The Mountain School in Vershire, VT. She then attended Brown University, where she graduated with a Bachelor's degree in English.