I need to concentrate on my work.

Bring it on ! I'm ready to take on this challenge.

I refuse to give up on my dream of becoming a doctor.

The party went on and on until the early hours of the morning.

I'm keeping up on per with the others in the competition.

She put on a smile even though she was feeling sad.

She prefers using a roll-on for her undergarments.

He had a run-on sentence that was difficult to read.

The Sermon on the Mount is a famous sermon given by Jesus on a mountainside.

Shame on you! You should be ashamed of yourself.