Bonjour,
How would most French speakers ask their neighbor's ten-year-old son his first name?
<em>O A Quel est ton prénom?</em>
This question has no pictures. Wish I could help
Answer:
I'm gonna save a copy of this to study for myself, tysm
You would use vous, since M. Bernard means Mr. Bernard, and is formal. Generally if you're addressing someone as "Mme." "M." or "Mlle.", it's formal.