Question

primero tengo que enviar estas cartas para los abuelos. busquemos (hacer/buscar) un buzón para echarlas. carmen ¿no ves? al lado de la heladería hay uno. mara bueno, ¿y ahora dónde podemos sentarnos para comer el helado? carmen (romperse/sentarse) en esos bancos (benches). mara ¡uf! ya son las dos menos diez. carmen entonces (ir/ver) a casa en taxi. no nos da tiempo de caminar.

Explanation:

1. For the first blank: The context is about finding a mailbox to send letters. "Buscar" means "to look for", while "Hacer" means "to do/make". So we need to choose "Buscar", and since the structure is "Busquemos" (let's look for, from the verb "buscar" in the subjunctive form for "nosotros"), we confirm the correct verb root is "Buscar".
2. For the second blank: The question is about where to sit to eat ice cream. "Sentarse" means "to sit down", "Romperse" means "to break (oneself)". So we choose "Sentarse", and the correct form here (following the context of "podemos" and the action of sitting) would be "Sentémonos" (let's sit down, from "sentarse" for "nosotros" in the subjunctive or imperative, but in the blank, we use the verb root "Sentarse" as per the option choice).
3. For the third blank: The context is about going home by taxi because there's no time to walk. "Ir" means "to go", "ver" means "to see". So we choose "ir", and the correct form here (for "nosotros" in the subjunctive or imperative, the form would be "vamos" but in the blank, we use the verb root "ir" as per the option choice, and the structure "Entonces (vamos a) ir" but the blank is for the verb root, so "ir".

Answer:

1. Buscar
2. Sentarse
3. ir