How to say in Czech: He is really smart.

English
is really smart.
Czech
Je opravdu chytrý.
He is smart.
He is such a smart boy!
He is trying to be smart.
How can somebody so beautiful also be so smart?
Am I really that boring?
I find this whole discussion really stupid.
I really need to hit somebody.
He is young.
He lives there.
He is divorced.

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