How to say in Czech: His Russian is very good.

English
is very good.
Czech
Jeho ruština je velmi dobrá.
I do not speak Russian very well.
You speak Russian very well.
His Russian is getting better.
How good is his Russian?
His native language is Russian.
Is he learning Russian on his own?
He is learning Russian.
He is not Russian.
He is Russian.
Is he learning Russian?

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