You can take any seat ____ is free.
A、inwhichB
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Doyourememberthebuilding____flewaredflagalltheyearround?
Did you attend the meeting yesterday ____ Mary talked a lot ?
The doctor ____ is leaving for Africa next month.
He didn't know which room ____.
Thankyouforyourhelp,_____wecouldnothavefinishedtheworkintime.