Answer:
the Answer is bisabuelos
Step-by-step explanation:
Because they are talking about how that's his or hers grandpa and that his or her grandma and they say that your...
that means they are your great grandparents
porque estan ablando que su abuelo y su abuela son tu....
ESO quiere dicir que estan hablado de Los abuelos the tus padres y ESO significa que la palabra que falta es bisabuelos