Juan Carlos dice que vs a llover.
The answer in the blank is "dice".
Federal i would say that would be it
<h2>Answer:</h2>
<em>The differences:</em>
<em>Aquel</em> is an adjective and <em>aquél</em> is a pronoun.
Example;
Aquel carro es amarillo. (That car is yellow.)
Aquél es pequeño. (That one is small)
<h2>IF YOU NEED IT IN SPANISH:</h2>
Las diferencias:
Aquel es un adjetivo y su uso es un pronombre.
Ejemplo;
Aquel carro es amarillo.
Aquél es pequeño.
Hope this helps :)