________ some teenagers don’t realize is ________ difficult life can be after they get addicted to drugs.
Our English teacher is very strict __________ us and __________ his teaching.
Mr Smith is strict __________ us __________ our studies.
She took drugs all day and showed no __________ for her children, who died of hunger at last.
—You know, Bob is a little slow __________ understanding. —So I have to be patient __________ him.
Our teacher is very strict __________ us, and we all show our respect __________ her.