Answer:
The correct sentences with the verbs are:
1. Se comió muy bien en Las Delicias.
2. Se vendieron muchas camisetas allí.
3. Se sirvieron platos exquisitos cada noche.
Step-by-step explanation:
The verbs in Preterite Form, when the sentence has the object pronoun "se", are conjugated in the next form, depending on that if it is singular or plural respectively:
1. Se comió/se comieron.
2. Se vendió/se vendieron.
3. Se sirvió/se sirvieron.
For identify which form you could use (singular or plural) you must see the next substantive there are "platos" or "camisetas" are plurals, that's the reason why was selected that form.