Question

Complete the dialogue below: —¿Ellos son tus abuelos? —S;í, él es mi _____ y ella es mi _____.

Answer 1

Abuelo goes on the first box and Abuela goes on the second one

Answer 2

The answers would be "abuelo" and "abuela".

The question, translated into English, reads:

—Are they your grandparents?
—Yes, he is my _____ and she is my _____.

As "abuelo" is the term for a masculine grandparent (or "grandpa"), it would go in the first blank, and "abuela", being the feminine equivalent ("grandma"), would go in the second.