Bonjour
1)yes you can wear un shirt at a gala because it'sophisticated
2) you can't wear sweat shirt because is for home
3)you can't and you can because it's basical and simple
4)you can't wear à caps because it's not realy polite
5)you can wear this shoos because itws serious and good for a gala
5)you can because it's smal and basical
6)you can't because it's not serious and too sporty
7)you can't wear a dress because it's just sophisticated