Dropped articles is a good indicator of (most) Slavic language speakers, but not of most European languages. E.g., French would not have dropped those definite

Dropped articles is a good indicator of (most) Slavic language speakers, but not of most European languages. E.g., French would not have dropped those definite articles either. Definite article rules do vary a little bit, though, so extra definite articles would be a good indicator of European native speakers...