Answer:
1. el camarero se los trae.
2. el camarero nos lo trae.
3. el camarero os lo trae.
4. el camarero te las trae.
5. el camarero te la trae.
Explanation:
indirect to direct. if both are third person, indirect becomes se.
ID so you don't DI (this helps me remember the order the pronouns go in)
hope this helps!