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

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

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