How to say in Czech: Are they Belorusian?

English
Are
Czech
Oni jsou Bělorusové?
They are Belorusian.
They are not Belorusian.
They live there.
They didn’t write that.
Are they ready?
They are going home.
They are leaving in the morning.
They are not ready.
They are not ready yet.
They are old.

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