I believe it's Voy, because that is the "I" or "Yo" form of the word "ir", meaning "to go".
Where are you going to eat?
(I am going to) The restaurant.
¿Adónde vas para comer?
Voy al restaurante.
Answer:
Estos pantalones
Aquellos suéteres
Ese suéter negro
Aquellos zapatos
Esas botas
Ese traje
The dog ate the food
Explanation: