Don’t leave your seat ________ all the papers have been collected by the teacher.
_____ of the workers in this factory is about five hundred. ______ of them are women.
This picture is quite old, we can still see it was drawn in century.
—What can I do for you? —I’d like two _______.
Could you help me, Andy? We need ______ tables for the birthday party.
It took him ____ to find the key to the drawer.