The answer is (usted) because you dont have a personal relationship with this person.
ustedes means you guys
vosotros means all of us
tu is used for someone whom you are close with like a family member or someone whom you have know for a while.
Aprender- to learn
escuchar- to listen
contar- to count or to tell
estudiar- to study
hablar- to talk
cocinar- to cook
pasar (tiempo con)- to spend (time with)
practicar- to practice
deportes- sports
cantar- to sing
bailar- to dance
mirar- to look
comer- to eat
leer- to read
escribir- to write
vivir- to live
decidir- to decide
definir- to define or to determine
Incorrect; the correct way is “Estoy escuchando música.”
Sam y Kai son amigos desde el cuarto grado. Cuando descubrieron que a ambos les gustaba el fútbol, empezaron a jugar mucho al fútbol y se hicieron famosos jugadores de baloncesto. Ambos vivieron para vivir sus vidas al máximo. El fin.