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

English
is very good.
Czech
Jejich italština je velmi dobrá.
I do not speak Italian very well.
You speak Italian very well.
How good is their Italian?
Their Italian is getting better.
Their native language is Italian.
Are they learning Italian on their own?
He is Italian.
He is learning Italian.
He is not Italian.
Is he Italian?

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