I was about to go out ______ the telephone rang.
I can’t remember ______ I met the man.
It is the film _______ director is Steven Spielberg _______ attracts quite a few viewers throughout the world.
——Where did you get to know her? -----It was on the farm______ we worked
——Where did you come across our chemistry teacher ? ------ It was in the supermarket ______ I purchased mooncakes.
It was____ computer games that cost the boy lot of time that he ought to have spent on his lessons.