Thanks for your repply and for your precious tips,
You're right but I don't want to choose Brussels because I really need to be totaly fluent in english at the end of the groundschool. I travel a lot, so my english is not so bad for everyday life situations, but, driving a group interview et personnal interview is something really different no ?
So if they don't care about the way I speak, I think it'll be ok. But, If they want somebody who's totally fluent, so I need to do a LOT of improvement.