It was on a cold winter evening_______ his father left home and was never back.
It is only 6.7% of Korean students _____ have ever read Chinese books or watch Chinese TV programs.
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.