How to say in Czech: What are they working on?

English
What are working on?
Czech
Na čem pracují?
Are they working on it?
They are not working on it.
They are working on it.
Who is working on it?
They live there.
What kind of work do you want to do?
What is your address?
Are they looking for work?
They are looking for work.
They are not looking for work.

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