—Who ______ it be that hasn't handed in his homework?—It ______ be Bob. He handed it in yesterday.
It is the film _______ director is Steven Spielberg _______ attracts quite a few viewers throughout the world.
——Where did you come across our chemistry teacher ?------ It was in the supermarket ______ I purchased mooncakes.that B. which C. where D. when
Only when your identity has been checked__________.
No sooner____ on my comfortable bed______ my telephone rang.
I think it’s the driver rather than the passengers who______ for the accident.