He is engaged in the geological investigation of that area.

The police investigated the scene.

His brave fighting spirit encouraged the whole team.

He fought bravely in the match.

Her antipathy towards him increased day by day.

He is working as a bureaucrat.

I'm not yet used to this character.

My class starts at eleven o'clock.

I eat lunch at twelve o'clock.

Greenwich Mean Time is the standard that determines the time of the world.