Do French, Spanish, Italian, and Greek controllers still speak to their native pilots in their native language?
Well, I just pulled up LEMD on LiveATC and heard some Spanish there. So Madrid clearly speaks Spanish sometimes, although it's probably not very busy right now (5:30 AM there). Archives from midday for LFPO and LFBD (Orly and Bordeaux) have plenty of French. Archives from midday for LGAV (Athens) approach has something definitely non-English (I can't tell if it's Greek or not, but I can't imagine anything else it'd be); LGAV has heavy use of English, but it's not exclusively English. And LiveATC has no feeds for Italy. So, for three of them the answer is definitely "yes, they still speak not-English;" for the last, LiveATC can't answer.