The relative pronoun is ''Which'' because relative pronouns connect to a clause or phrase to a noun or pronoun.
Answer:
The Black Lives Matter protests that have followed the killings of George Floyd and Breonna Taylor by police officers remind Margaret Burnham of 1968.
Explanation:
At that time, the national response to the assassination of Martin Luther King Jr. combined with ongoing protests over civil rights and the Vietnam War to plunge an already divided nation more deeply into turmoil.
Answer: You could write about two people meeting in a roller coaster next to each other after they were stuck on it for two hours and then after they were unstuck from the ride have them start becoming friends,and going on a date, etc and then they end up getting married and having a family you just need to add your own details :)