Final answer:
The preterite verb conjugation in the sentence is correct.
Step-by-step explanation:
The correct preterite verb conjugation for the sentence "Cerraste el archivo?" is correct. The verb "cerrar" means "to close" in English and in the second person singular, the preterite form is "cerraste". Therefore, the sentence is correctly asking "Did you close the file?"
Learn more about Spanish verb conjugation