Hago una llamada de mi coche. uso
la pantalla
el prefijo de país
la clave de área
el contestador automático
el disquete
un teléfono celular
el documento
el ratón
el correo electrónico
la guía telefónica

un teléfono celular

Explanation:

I make a call from my car.

Use:

the screen

the country code

the area code

the answering machine

the floppy disk

a cell phone

The document

the mouse

the email

the phone book

So if you make a call from your car you will use what?

not an email

not a mouse

not a document

not a floppy disk

not a country code

not a area code

we are left with

a screen -la pantalla

the phone book- la guia telefonica

a cell phone- un telefono celular

So if you are making a call from you car

what will you use...

a screen... tis one could be a option if the car as a electronic screen but we dont know that

a phone book- well you can only search numbers from a phone book not call

so only logical one

is

Un telefono celullar