1 to go to work

2 to be on duty

3 to start work

4 to go to the office

1 modal particle indicating that sth is obvious

2 particle indicating a pause for emphasis

1 what are you doing?

2 whatever for?

3 why on earth?

1 surname Ban

1 office workers (as social group)

1 to follow the prescribed order; to keep to the working routine (idiom)

1 to treat sb with courtesy (idiom)

1 to display one's slight skill before an expert (idiom)