One morning  a London boy was  sitting in the bus on  his way to school.  He was  sniffing  all the time and making such a  noise   with his nose that the other people  in the bus began to shake their heads. At   last an old  m...

One morning  a London boy was  sitting in the bus on  his way to school.  He was  sniffing  all the time and making such a  noise   with his nose that the other people  in the bus began to shake their heads. At   last an old  man who was  sitting next to  him said: Little  boy, have you  got  a handkerchief?.  Yes, I 've  got a handkerchief  in my pocket, said the boy, "but I can't  let you have it.   Mother ask  it's not   polite  to ask  anybody for a handkerchief. You must have and use your own.  В ТЕКСТЕ  нужно   выбрать предложения  в  перфектном времени?????