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.
Answer:
Good morning Mr. Lopez. How are you?
Explanation:
This is what it means in english.
The adventures in Costa Rica is the answer.