He exulted when he heard about her success.

Please provide the resources needed for this project.

He furnished me with the information I needed.

I am working hard on studying every day.

Do you understand the necessity of this project?

That information is unnecessary.

That information is completely unnecessary.

He thinks that war is a necessary evil.

He is involved in the development of androids.

Rumors are spreading throughout the town that he is a werewolf.