King was the most important black leader in America from the late 1950s until his ______ by a white gunman in 1968.

The legislative branch is composed of ______.

The abilities of individuals rather than their social class background, determine how high each person will go.

What image is used to describe theories of cultural assimilation in the US?

The phrase “paddling one’s own canoe” / “standing on their own feet” reflects the American value of ______.

More recently, some people have compared the US to a ______, a picture made of many different pieces.

Because titles of nobility were ______ in the Constitution, no formal class system developed in the US.