Answer:
"usted" is the more formal way to speak to an adult or someone older than you in Spanish while "tu" can be used when you're speaking to someone like a friend and that you have a chill and laid back connection with.
Explanation:
okay, en que te puedo ayudar?
A. han leído
Ellos han leído dos libros durante las vacaciones.
Yes I'm pretty sure the answer is TRUE
