How to say in Czech: Where did they learn Slovenian?

English
Where did learn
Czech
Kde se naučili slovinsky?
Are they learning Slovenian?
Are they learning Slovenian on their own?
They are learning Slovenian.
Do they speak Slovenian?
They do not speak Slovenian.
They do not speak Slovenian very well.
They speak only a little Slovenian.
They speak Slovenian.
They speak Slovenian fluently.
They speak Slovenian very well.

Czech phrasebook and translator with tens of thousands of sentences translated by humans. Czechslator is being developed by Michal Měchura. CREDITS Czechslator's sentence generation engine is partially based on Grammatical Framework. All Czech pronunciation is computer-generated using Microsoft Azure Text to Speech. When Czechslator cannot find a translation in its own database, it looks in the PanLex dictionary or obtains a machine translation from Microsoft Translator. PRIVACY Czechslator does not save any cookies in your web browser and does not collect personally identifiable data. Czechslator uses StatCounter for traffic analysis, configured not to save any cookies in your web browser and not to collect any personally identifiable data.