How to say in Czech: Are they learning Lithuanian?

English
Are learning
Czech
Učí se litevsky?
Are they learning Lithuanian on their own?
They are learning Lithuanian.
Where did they learn Lithuanian?
Do they speak Lithuanian?
They do not speak Lithuanian.
They do not speak Lithuanian very well.
They speak Lithuanian.
They speak Lithuanian fluently.
They speak Lithuanian very well.
They speak only a little Lithuanian.

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