Maria: ¿Cuantos años tienes? Juan: quince Maria: ¿Cuando es tu cumpleaños? Juan:
Maria: Hasta luego
Juan:

blank 1: tengo (meaning I have)

blank 2: asking when Juan's birthday is. If there is other information about when his bday is, then phrase it like this: Mi cumpleaños es el (insert day here) de (insert month here). So it would look like this with a random date: Mi cumpleaños es el doce de abril. (translation: my birthday is April 12) Remember that you don't capitalize months in spanish.

Blank 3: Juan could respond multiple ways here. He could say:

Hasta luego (what Maria said, meaning see you later)

igualmente (meaning and you, or you as well)

adios (meaning goodbye)

Explanation:

Hope this helped. Good luck!

if your asking for what that says, it is

which of these words is an

but i don't know what sentence your asking for the adjective from.