How to say in Czech: Are they working on it?

English
Are working on it?
Czech
Pracují na tom?
They are not working on it.
They are working on it.
What are they working on?
Who is working on it?
They live there.
Are they looking for work?
They are looking for work.
They are not looking for work.
They are out of work.
They were looking for work.

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