How to say in Czech: Do they speak Lithuanian?

English
Do speak
Czech
Mluví litevsky?
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.
Does anybody here speak Lithuanian?
Where did they learn Lithuanian?
Are they learning Lithuanian?
Are they learning Lithuanian on their own?

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