This book was required reading at my university.

Please be careful not to make mistakes in the stroke order of Kanji.

His collection of essays shows his deep thought and insight.

His novel was actually the work of a ghostwriter.

That information is unnecessary.

That information is completely unnecessary.

He conducts all his activities as a writer under a pseudonym.

Kamakura Udaijin is the courtesy name of Minamoto no Sanetomo.

The zookeeper takes care of the animals every day.

All members of our team are experts.