After clinching her fifth consecutive win in the championship, the tennis player seemed to be on a roll.

I need to concentrate on my work.

"Don't worry, I'm on it !"

Her constant complaining really gets on my nerves.

Always keep your eye on the ball during the game.

I love to live like on the edge.

She always puts on airs and acts like she's better than everyone else.

I am always on call for emergencies.

The joke is on him.

" Right on , that's the right answer!"