How to say in Czech: They speak only a little Latvian.

English
speak only a little
Czech
Oni mluví jen trochu lotyšsky.
Do they speak Latvian?
They do not speak Latvian.
They do not speak Latvian very well.
They speak Latvian.
They speak Latvian fluently.
They speak Latvian very well.
Does anybody here speak Latvian?
Are they learning Latvian?
Are they learning Latvian on their own?
They are learning Latvian.

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