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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1-lo
2-lo
3-lo
4-la
5-la
6-lo
7-lo
8-lo
9-lo
10-lo
11-lo
The ritual of strolling leisurely around a walkway is called a promenade.