Amy: is your job?
Mr Zhou: I'm a singer.
Amy: do you work?
Mr Zhou: I work in a music studio.
Amy: do you do?
Hr Zhou: I sing songs and perform on stage.
Amy: is your job?
Mr Liu: I'm an astronaut
Amy: do you work?
Mr Liu: I work in a spacecraft.
Amy: do you do?
Mr Llu: I travel in space and do experiments.
