How to say in Czech: Where did he learn Bulgarian?

English
Where did learn
Czech
Kde se naučil bulharsky?
He is learning Bulgarian.
Is he learning Bulgarian?
Is he learning Bulgarian on his own?
Does he speak Bulgarian?
He does not speak Bulgarian.
He does not speak Bulgarian very well.
He is Bulgarian.
He is not Bulgarian.
He speaks Bulgarian.
He speaks Bulgarian fluently.

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