Peter is a quiet boy.When his classmates____to him,he does not answer____.Therefore,his cllassmates don't like him,but Peter doesn't know____.He feels thst nobody lokes him.He is unhappy.
One day,when he was walking home,he____a robbery. A man was threatening aYoung lady with a knife.Peter didn't know what to________.He felt very_____.Suddenly,he shouted at robber,"Stop it, or I'll call _____police "The robber dropped ____the ____and run away.