Read the descriptions of the jobs that were popular in the past and choose the correct option.
This person had a high salary. He used the
telegraph and Morse code to communicate
with other people by land lines or radio. It
was the most popular job in the beginning
of the 20th century.
chimney sweeper
telegraphist
This person cleaned out the chimneys. His
clothes were always dirty, as he did a dirty
job. It was a difficult job to do because he
often got stuck in chimney, got health
problems, or even could burn.
knocker-upper
This person knocked on the people's doors
who paid him to tell the time. Usually he
came three times during the day. This job
was popular in Britain and Ireland till 1970s.​