How to say in Czech: Where did they learn Swedish?

English
Where did learn
Czech
Kde se naučili švédsky?
Are they learning Swedish?
Are they learning Swedish on their own?
They are learning Swedish.
Do they speak Swedish?
They do not speak Swedish.
They do not speak Swedish very well.
Are they Swedish?
They are not Swedish.
They are Swedish.
They speak only a little Swedish.

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