Answer:
Every four years the American people choose a new president, and 1988 is one of those years.
Step-by-step explanation:
A fact is quite simply something that has been proven to be true.
The line from President Reagan's address at Moscow State University that is a fact is Every four years the American people choose a new president, and 1988 is one of those years.
Truly, every four years, the Americans cast their votes to choose a new president because they function as a democratic system of government where the citizens have the power to select their leaders.