Para hacer una llamada de eeuu a españa, se necesita
la pantalla
una tarjeta internacional
la clave de área
el contestador automático
el disquete
un teléfono celular
el documento
el ratón
el correo electrónico
la guía telefónica

 The correct answers are:

Una tarjeta internacional, la clave de área, un teléfono celular, la guía telefónica.

Explanation:

To make an international call you will need at least one of these elements.

In case your call is from a landline, you will need an international card and the area code of the person who will receive the call. If you don't know the phone number, you may also need a phone book.

In the case that you use a cell phone, there are services such as roaming that facilitate this type of operation.