Usted,because you use that when you talk to someone you are not familiar with
Años is the correct answer
I'm not too sure, but it's either A. Gulls or D. Turtles
The ____ are part of the flora of the Guatemalan coast.
A. Gulls B. Whales C. Palm trees D. Turtles
Te va a gustar lo que te compré para tu cumpleaños!
¿Que vas a comprar en la tienda?
Ve a Bailar con tus amigo en la fiesta!