Calendars tell people what month and what day it is. Sometimes, people write on their calendars. They write what will happen on a particular day. People might write " meet friends at the park," or they might write " go to the store." This helps people keep track of and remember their plans.
What is the primary purpose of this passage?
to tell people to get a calendar
to tell how people use calendars
to tell where to find a good calendar
to tell about different kinds of calendars.