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You cannot use where.
But you can see either
"Publicity is the department which concerns advertising"
or "Publicity is the department that concerns advertising."
"which" is a just a little more formal.
edward
Quote:
Originally Posted by Unregistered
I would like to inquire abou the relative clause. can where take the place of which in the following sentence:
Publicity is the department which concerns about advertising
relative clause 
Re: relative clause 
Re: relative clause 
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