Many firms give away small quantities of their productions as _______ so that people can try them before buying.
. Are you suggesting that I _____ too old for the job?
Seeing your picture, I couldn’t resist _____ the days _____ we spent together.
______ what we have now, we can’t afford so large a house.
He was _________down for several days after he heard the bad news .
_______news came ________an unknown disease was spreading in the area .