Why do you insist on buying a car ______ you have such good public transportation here?
There has to ______ a well-developed system that can give people a warning when a tsunami is ______ the way.
—I hear Johnson ______ in the middle school. —What? I can’t imagine him ______ as a teacher.
He has passed the examination _____ his hard work.
I don’t like the pattern of the trousers. _____, the colour doesn’t suit me.
Many students believe the choice of their majors and universities should _____ their own interest.