-¿está Marta? --Está en el gimnasio.

Dónde
Cómo
Adónde
Qué

Donde

Explanation:
Como means how.
Que means what.
The only appropriate answers are either donde or adonde. The reason it's not adonde, is because you use adonde when asking "to where" or "where to" if that makes sense. If you're simply asking where someone is, you say donde.

No sé que te dierano sé que te diera,por una mirada, el mundo,por una sonrisa, el cielo,por un beso,ay, no sé que te diera por un beso.veo la lunaveo la luna y la luna ve a mí,que dios bendiga la lunafound the answer in that link. if its wrong just delete my answer so you get your points bck.

You lose experience for asking questions.  you gain experience for answering questions.i hope this !