Il est préférable que le francophone unilingue travaille dans un environnement français où il recevra sa formation en français et que l'unilingue anglophone travaille dans un milieu anglais où sa formation se fera dans sa langue maternelle et je ne parle pas de la formation dans les métiers, mais bien de la formation générale.
It is better to have a unilingual francophone in a francophone environment where his training will be in French, and if you have a unilingual anglophone, it's better that he's in an anglophone environment where his training and I don't mean here trades training, but I mean his general unit training will be in his mother tongue.