19. All of the answers are correct
Maybe a pep rally, to bring people together and for each grade's students to be a team and get along, and to also have fun . A pep rally can be used as a rally to bring people to get along and together.
The people have the right to overthrow their government when they are being oppressed by said government
During World War II when the men went off to war the women were left at home to take over all the industrial jobs such as making ammunition and weapons and all the factory jobs that two men would have had to support the war effort