I know they have a bilingual section (English/French) starting from Maternelle. So I guess English is the second language.
You should contact the school or check their website: there are relocating the primary sections next year. Also If you are planning to register your child/children there I would try to register them now ;)
Hi She123,
I think that Lycee George Pompidou is a better choice as the teachers are qualified from France (titulaires). I am not sure that it is the case for the EF Internationale.