Why not your friends for help when you are in trouble.

Many people tried to leave the country, ________ there was much violence and a serious shortage of food supply.

________ failure are clearly defined andmeasured.

Not until I arrived home _____ my wallet lost. [ ]

Don’t be angry with your kid when he makes a mistake, will you— No．I won’t．I know that _____________ of us are perfect after all．