How to say in Czech: Is she learning Japanese on her own?

English
Is learning on her own?
Czech
Ona se učí japonsky jako samouk?
Is she learning Japanese?
She is learning Japanese.
Where did she learn Japanese?
Is she Japanese?
She is Japanese.
She is not Japanese.
Does she speak Japanese?
She does not speak Japanese.
She does not speak Japanese very well.
She speaks Japanese.

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