Final answer:
The sentence 'Las víctimas sufrieron un accidente terrible' uses the Preterit tense in Spanish.
Step-by-step explanation:
The sentence that uses the Preterit tense is Las víctimas sufrieron un accidente terrible. In Spanish, the Preterit tense is used to describe completed past actions or events. In this sentence, the verb 'sufrieron' (suffered) is conjugated in the Preterit tense, indicating a past action that has already been completed.
Learn more about Usage of Preterit tense in Spanish