California and Nevada border on each other.

I didn't figure on him showing up at the party.

After the surgery, it took him a while to get back on his feet.

Lions prey on zebras in the African savannah.

She would often go on a rave about her favorite band.

He is always on the move.

Let's get the show on the road and start our journey!

We are on a first-name basis.

I had to make some changes to the presentation on-the-fly.

You can count on me to help you with your project.