Going to school is our duty.

He wrote the original plan for this movie.

He decided to participate in the meeting.

I will participate in the meeting tomorrow.

Mamika is my best friend.

In this experiment, the sample is heated for a certain period of time.

This dish has cooled down, so please heat it up again.

The friendship between Canada and Japan is deep.

He will never tolerate acts of abuse.

Yoka is my best friend.