Answer:
A Carlos y a Sofía les interesa el arte de Gaudí en el parque Güel.
This is the best translation of "The art of Gaudí in Güel Park interests Charlie and Sophie."
Porque agua es un sustantivo masculino.
I think it's 'la' but you might want to wait and see if someone agrees with me
La maquinilla de afeitar= razor
Maquillaje= makeup
Bigote=moustache
La toalla= towel
Jabón= soap
Real Christmas trees are better for the environment, because usually the material that fake trees are made of are not recyclable. Hope that helped! (: