—Are you free after school? —Sorry, I’ve planned to treat a friend of mine to dinner ______ for help.
It took ______ building supplies to construct these energy saving houses. It took brains, too.
Though it is 20 years ______ we last met, I still remember the scene______ we got separated on a snowy day.
She is very dear to us. We have been prepared to do ______it takes to save her life.
My grandfather is as ______ as a young man and hates sitting around doing nothing all day.
--You look upset. What’s the matter? --I had my proposal _______ again.