Написать главную мысль этой истории на английском (кратко): Mr. Smith is from Great Britain. He lives in London in Oxford

Главная мысль текста (кратко):

Mr Smith, a businessmen from London, has got a large and friendly family.

На этом можно закончить, а можно чуть подробнее:

Mr Smith, a businessmen from London, has got a large and friendly family: a wife, five children, many other relatives. Also The Smiths like their pets very much.