Final answer:
The correct verbs to complete the sentence are 'olimpiaba' and 'sacó'. Using the imperfect and preterite tenses helps convey the ongoing and completed actions in the sentence.
Step-by-step explanation:
The correct verbs to complete the sentence are olimpiaba and sacó.
'Olimpiaba' is the imperfect tense of the verb 'limpiar', which means 'clean'. 'Sacó' is the preterite tense of the verb 'sacar', which means 'take out'. So, the complete sentence would be 'Mientras el amo de llaves olimpiaba el cuarto, la señora sacó su maleta.'
Using the imperfect tense in the first part of the sentence indicates an ongoing action in the past, while the preterite tense in the second part indicates a completed action.
Learn more about verb conjugation in Spanish