How to say in Czech: What is their surname?

English
What is
Option 1 Option 2
Czech
Jaké je jejich příjmení?
Did he forget their surname?
Do I know their surname?
He does not know their surname.
He forgot their surname.
He knows their surname.
They told her their surname.
Tell me your surname.
What is their cat’s name?
What is their native language?
What are their plans?

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