Respuesta :

Ellos iban a la escuela

Here the imperfect tense is iban which means were going

El dormía tarde ayer

Here the imperfect tense is dormía which means slept

Nosotros hablábamos por teléfono

Here the imperfect tense is hablábamos which means we were talking

Ellas iban al centro comercial

Here the imperfect tense is iban which means were going