The child ought to be punished, how should you let him _______telling lies.
I strongly suggest the person ________ out and explain all that has happened.
— Shall I open the window to let some fresh air in? —No,________ .
If you don’t know that _____ is the mother of success, you are sure to be _____ in life.
It is everyone’s duty to ______the rules of our school.
It is very ______ that she will ring me tonight.