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

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

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