You Answered blank(blank) (llover) cuando ellos You Answered blank(blank) (salir)

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Explanation:

1) Llovía (it was raining, imperfect preteritum, 3rd person singular ) cuando ellos salieron (got out)   a la calle.

2) Cuando (when) llegué (arrived, simple perfect preteritum, 1rd person singular ) a la tienda ya estaba (was , imperfect preteritum, 3rd person singular ) cerrada.

3) De repente me (to myself or "yo me" , since the "yo"(I) is implicit subject) acordé (remembered , simple perfect preteritum, 1rd person singular) de que yo tenía (had , imperfect preteritum, 1rd person singular ) deberes .

4) Normalmente yo limpio  (clean, simple present) mientras mi madre cocina (cooks, simple present) . (present event)

or

Normalmente yo limpiaba  (cleaned , imperfect preteritum, 1rd person singular ) mientras mi madre cocinaba. (cleaned , imperfect preteritum, 3rd person singular )

5) Cuando Andrea corre ( runs , present simple) por el parque los fines de semana , siempre ve (she sees, the subject is implicit , present simple ) a mis amigos.