Past Simple (to be)

Yesterday, I (1) to an old friend who (2) in my town. We (3) to the same school and (4) in the same class. Back then, he (5) so athletic, and I (6) tall and lanky. He (7) the captain of our football team, while I (8) in chess club. After school, we (9) to play video games at his house. His parents (10) always very welcoming, and their dog (11) extremely friendly. We (12) many great memories together. It (13) so nice to see him again and reminisce about our childhood.