Every man has his faults. We should, therefore, learn to be ______ of others.
Don’t answer the phone when the cell phone is being charged, for it ________ be very dangerous sometimes.
Whatever happens , Ben, ________ drugs.
After _______ seemed like an hour, Michael started off on his bike for _______ his dream leads him.
Only under special circumstances ________to use the fire hose, otherwise they will be punished.
Jessica suggested the problem worth paying attention ______ at the meeting.