He is recognized as the authority of that project.

I sent him three letters.

Toru is my best friend.

Naotsugu is my best friend.

He commutes to school by bicycle every day.

Every day, I commute to school by bicycle.

Tsutomu is my best friend.

This old Kyūjitai is a keepsake from my grandfather.

His business is going smoothly.

He was able to predict the future like clairvoyance.