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.
Yo=abro
Tú =abres
El=abre
Ella=abre
Nosotros =abrimos
Vosotros = abrís
Ellos=abren
Ellas=abren
Answer:
Hello there!! how are you?
Explanation:
1. Usted no llegara tarde a la clase
2. Usted no va a gritar en la escuela
3. usted bno va a posponer las cosas
