Question

Fill in the blank with the most appropriate answer.

Por lo general, para entrar en un coche y arrancarlo, necesitas_____.

llaves

antenas

espejos

tanques

Answer 1

First of all, you need to know what the sentence above means.
"In general, to enter a car and unlock it, you need ___."
The options are llaves (keys), antenas (antennas), espejos (mirrors), and tanques (tanks).
So obviously, based on the context, the correct answer is going to be llaves.