How to say in Czech: Is he learning Lithuanian?

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

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