Answer:
A. decidí (decided)
Ex: El mes pasado decidí estar en una dieta para estar en buena salud.
Last month I decided to go on a diet to stay in good health.
B. hice (I did / I made [depends on what you're talking about])
Ex: El mes pasado hice ejercicio cada mañana.
Last month I exercised every morning.
C. fui
Ex: El mes pasado me fui al spa para relajarme.
Last month I went to the spa to relax.
If u wanted more verbs I really can't think of any else I'm sorry