Answer:
O.I. a su tía. Sarah le está lavando las manos a ella.
O.I. a mi padre. Yo le escribo una carta a él.
O.I. para los niños. Ellos compran zapatos para ellos.
O.I. a mi amiga. El turista le vende su cámara a ella.
Explanation:
It means
To get good grades
<span>Me duele la cabeza.
This means I have a headache.
The reason for this is because it is an I statement and the other that isn't a question is a you statement which isn't explaining how you feel.
Hope this helps!</span>