They are my best friends.

He is explaining the fact of the expulsion of the Japanese in detail in that history book.

They started a movement to expel the Japanese.

He is a Japanese person.

I decided to start a new project.

He came to Japan for the first time.

Since I started studying Japanese, I have been able to understand more about Japanese culture.

He started playing the piano.

It is important to do athletics every day to maintain health.

Exercising every day is important for maintaining health.