Answer:
- Tú (c)
- él (a)
- Yo (d)
- Usted (b)
(Please mark me as Brainliest, I need it to move onto the next level. =D)
The answer is <u>sonó</u>
Yo me duchaba cuando <u>sonó</u> el teléfono.
The verb duchaba is in pretérito imperfecto and matches with simple past (in this case sonó). This pretérito imperfecto describes an action or state in the past, without indicating whether it was completed or not.
Pusiste
Saliste
Viniste
Explanation :
They all finish with -ste
