It means true friends are hard to find but when you do find them hold them close because they're worth so much. Fake friends are literally everywhere around you and mean nothing/worth nothing.
Answer:
Sentence two, "If my friend calls, tell them I'm at my violin lesson."
Explanation:
"Friend" is singular. "Them" is third-person plural.
Answer:
Compulsory: Required of all people in a particular group
Eclectic: Describes something that uses information from a variety of sources
Rote: Method of learning by repeating something over and over again
