Answer:
The correct answer is A. Nadábamos
Explanation:
We used to swim, corresponds to the imperfect preterite, translated as "soliamos nadar"/"nadabamos"
Said tense refers to past situations, without relevant time limits.
Anoche, mis tíos hablaron con mi mamá.
No oíste lo que dijo. ¿Qué dices? Qué onda?
The answer to 3 is A
Im 90% sure that the answer to number 4 is C