He was controlling traffic using hand signals as a traffic police officer.

The ship entered the port flying a quarantine flag.

Uranus is the seventh planet in the solar system.

North Korea is a country located in East Asia.

He is interested in the history of the Old World.

Our team's performance is particularly good this year.

He was waiting for the guests in the reception room.

I love dairy produce.

This chemical reaction occurs by the synthesis of two elements.

He is conducting an experiment to synthesize a new compound.