Paul has to  his little sister at home at the weekend．

A：How soon will you leave for the train station, Dad?

B：You have to look after yourself when I'm away, Tom．

A：Don't worry．I can take good care of myself．

B：I'm afraid you can't cook well．

A：Sure．

B：Don't forget the lights and the windows before going out．

A：I won't．It's time for you to go．

B：OK．I'll buy you some presents when I come back．

A：Just something to eat．

B：OK

    When Mike was walking through the town, he noticed a stranger man. The stranger looked at him with a big frown(皱眉)and it made Mike very uncomfortable. Mike did nothing w, but the man still frowned at him. He was so angry that he frowned at the man with his tongue(舌) out. And he found most of the people around looked unhappy and frowned. Mike wondered w so many people frowned at each other.

      A clever idea came into Mike’s head. He should s first. It seemed silly at first, but he want to h a try. When a woman walked towards him, he smiled a her and the lady smiled at him, and most of the people smiled at him, too. Everybody seemed happy b of the smile of the clever boy.

      Then Mike once again met the stranger and the man still looked at him w a frown. Mike had a good idea. He smiled a big smile w the man passed him. The man stopped, looking at Mike's face and he started to smile. The two strangers laughed and they b felt happy. Just a smile lifts you up f a feeling of down. So when you see a man with a frown, put a smile on your face. And you’ll find that the world is a happy place.

— Yes. We enjoyed (we) very much.