vs
QUICK ANSWER
"De dónde son" is a form of "de dónde son", a phrase which is often translated as "where are they from". "¿Y ustedes?" is a phrase which is often translated as "And you?". Learn more about the difference between "¿Y ustedes?" and "de dónde son" below.
¿Y ustedes?()
A phrase is a group of words commonly used together (e.g., once upon a time).
de dónde son()
A phrase is a group of words commonly used together (e.g., once upon a time).
a. where are they from
Esperamos a varios invitados al congreso. - ¿A cuántos esperan y de dónde son?We expect several guests at the conference. - How many do you expect and where are they from?
a. where they're from
¡Qué lindos caracoles! Dime de dónde son.Those shells are lovely! Tell me where they're from.