Boy, what are you doing over there?

He dissected a frog in his biology class.

He proceeded with the conversation in an arrogant manner.

I can't stand his arrogant attitude.

He has a habit of spouting insensitive words.

They conspired to rob the bank.

They were conspiring in secret.

His face features are very similar to his father's.

This fort was built to protect the town from enemies during wartime.

We should learn about disaster prevention.