Final answer:
The correct verb in the Imperfect tense to complete the sentence 'la hora del vuelo. Yo ______' is 'sabía'.
Step-by-step explanation:
In this question, we are asked to choose the correct verb in the Imperfect tense to complete the sentence 'la hora del vuelo. Yo _____'. The correct verb in the Imperfect tense is 'sabía' because it agrees with the subject 'yo' (I) and indicates a past ongoing action or a habitual action in the past.
Learn more about Imperfect tense in Spanish