Question

question 7 of 10
para viajar a otro país, hace falta _______________, que es un documento importante.
a. un vuelo
b. un pasaporte
c. un boleto sencillo
d. un agente

Explanation:

A passport is an important document needed to travel to another country. A flight (un vuelo) is a mode of transportation, a single - ticket (un boleto sencillo) is for a journey, and an agent (un agente) is a person, not a document for international travel.

Answer:

B. un pasaporte