Yo las cartas con mi padre a la fiesta de mi abuelo. (jugar)

I the letters with my father to my grandfather's party. (to play)

Explanation:

what sentences? what words?

when the outside temperature is too cold, an endothermic animal can generate heat by shivering. endothermic animals must eat much more often than ectothermic animals since it takes energy to maintain a constant body temperature.