How to say in Czech: Is he learning Arabic?

English
Is learning
Czech
Učí se arabsky?
He is learning Arabic.
Is he learning Arabic on his own?
Where did he learn Arabic?
Does he speak Arabic?
He does not speak Arabic.
He does not speak Arabic very well.
He speaks Arabic.
He speaks Arabic fluently.
He speaks Arabic very well.
He speaks only a little Arabic.

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