Complex sentence: The Middle School completed a new annex during the summers of 2009 overlooking Tai Tam Bay, which is comprised of administrative offices, a boardroom, several new Modern Languages classrooms, and a flexible seminar/meeting space.
Split into simpler sentences: The Middle School completed a new annex during the summers of 2009 overlooking Tai Tam Bay. The annex includes administrative offices, a boardroom, several new Modern Languages classrooms, and a flexible seminar/meeting space.