I think it’s prepositional phrase
The Forum served as a stage for Roman politicians and philosophers. It was a sort of a square where people gathered to hear these politicians and philosophers speak.
to order again because the prefix re means again and the root word mand means order :)
4. They were trying to influence the readers, which were mainly the American Colonists and the citizens of countries like England.
5. The readers might not have gotten the point they were trying to make. The repetitive sentences kind of enforced the point they were making.