If his parents are convinced ____the fact that his son always focuses his mind his study.
Rather than _________ at home, he always prefers ________ out to play.
I’m going to visit the factory ________ your brother worked a few years ago.
The number of people who _______ invited to the meeting _____ fifty, but a number of them _____ absent for different reasons.
--- Do you want another drink? --- __________.
He got home late ____________ the traffic was heavy.