The last one is grammatically incorrect it should be comió
<span>From what I can tell it would the conjugation form for you all which would be ustedes/ellos/ellas
Tienen
Compran
Naden
Comen
Limpian
</span>
Aquella guitarra era de mi padre
D. nos vemos is the right answer
ser: possession, telling time, origin, occupation. impersonal expr., relationships. essential charact. composition made of.
estar: events, condition/emotion, physical location, idiomatic expression, progressive actions.