How to say in Czech: Which ticket should they buy?

English
Which ticket should buy?
For transport For entry
Czech
Jakou jízdenku si mají koupit?
Where do I buy a ticket?
There is a ticket machine over there.
Who has the tickets?
Don’t forget the ticket.
The ticket inspector is coming.
Tickets please!
I bought two bottles.
They live there.
How should they know that?
They should be writing.

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