Question

imperfect er/ir
qué ______ (comer) frecuentemente vosotros?
comía
comían
comíais

Explanation:

The subject is "vosotros" which corresponds to the second - person plural in Spanish. In the imperfect tense for the verb "comer" (to eat), the form for "vosotros" is "comíais".

Answer:

comíais