Question

-er/ir preterit
yo \t í \t nosotros/as \t imos
tú \t iste \t vosotros/as \t isteis
él/ella/usted \t ió \t ellos/ellas/ustedes \t ieron
yo ______ (comer) una ensalada.
comieron
comís
comi

Explanation:

1. Identify the subject: the sentence uses "yo" (first-person singular).
2. Match to the preterite verb chart: for -ER/IR verbs, the first-person singular preterite ending is "-í".
3. Apply the ending to "comer": remove the "-er" stem, add "-í" → "comí".
4. Match to the provided options.

Answer:

comi