He made a demand to the company for a raise in salary.

Astronomers have reported the discovery of a new supernova.

This policy is necessary to stimulate the economy.

His speech sound is very attractive.

Please imagine the day when extraterrestrials come to Earth.

Human nature cannot change.

He decided to establish a new political party.

He was asked to coordinate the schedule.

He has a deep interest in Western culture.

He used a special fertilizer to force the growth of tomatoes.