He received the letter challenging him to a duel and began preparing for the duel.

Gender roles are an important element in defining individual behavior in society.

His role is to fulfill his responsibilities as a leader.

It is important to understand the importance of health.

My university is in Tokyo.

My high school has very strict rules.

My younger brother is learning cooking at a vocational school.

My sister is attending a boarding school.

My child goes to a public school.

He is studying computer science at a specialized school.