Do you know the man from ________ house the pictures were stolen?
Whenever I met him, _______ was fairly often, I like his sweet and hopeful smile.
On the wall hung a picture,__________ colour is blue.
He lived in London for 3 months, during ______ time he learned some English.
__________ has already been pointed out, grammar is not a set of dead rules.
I bought an ancient Chinese vase, _______ was very reasonable.