It means "when is the birthday of your best friend?" amigo is for a guy friend and amiga is for a gal friend.
the way u respond is "<span>El cumpleaños de mi mejor amigo (a) es <span>...."
and fill in the date.
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Answer:
"De donde estás tú"
Explanation:
The -as ending is the correct form for this pronoun.
No se que es esto y tu no sa ves de que tu ablas