No problem. I never had any problems with that airport, and Germany is a
good place for English, second only to Holland or Scandinavia. Make sure
you
are going to Frankfurt am Main and not Frankfurt Hahn (a long way outside
of
the Frankfurt area) or Frankfurt an der Oder (which probably doesn't even
have an airport!) Also find out what the Serbo-Croat (if that is what they
speak in Slovenia... maybe there is a Slovenian language?) for "Frankfurt"
and "Germany" are, for your return.

Good luck

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