A singer.
Singers work on a stage. They sing different songs or play musical
instruments. They sing songs of styles which had been chosen by their fans.
Singers usually wear bright and expensive clothes on the concerts. In their
work time they have a lot of rehearsals.
A president.
A president works in the government. He should take necessary laws. He
wears strict clothes. His responsibility is running his country.
A writer.
Writer’s work place is situated in their homes or sometimes in the office. They
write books and poems. They don’t have a dress-code.