Final answer:
The sentence that uses the Preterit Tense is 'Ellos llegaron muy rápido.'
Step-by-step explanation:
The sentence that uses the Preterit Tense is: Ellos llegaron muy rápido. The Preterit Tense is used to indicate actions that are completed in the past or actions that have a definite beginning or end. In this sentence, the verb 'llegaron' (arrived) is conjugated in the Preterit Tense to show a completed action in the past.
Learn more about Preterit Tense in Spanish