Yo soy bajito.
Ellos son feos.
Tú estas enfermo.
Estamos tristes.
Ella es alta.
La vida in Spanish means the life in english. SO you can say 'Mi vida es bueno', saying that your life is good.
In english its :Carlos asks the bellman how to get to the San Francisco convent.
It would be "Mi vacacion estaba divertida"
Why?
Estaba is the past tense for estar.
So you could use estar, but you would be using the past tense.
Hope this helps!~