He doesn't easily open up to strangers.

This is my first Japanese class.

In order to succeed in this project, it is necessary to strengthen teamwork.

Where is my textbook?

Mathematics is his favorite subject.

This government-established textbook is for teaching students about the country's history and culture.

The train was delayed due to a breakdown.

Everywhere was covered with snow.

He likes to play hardcore games.

I installed a new hammock in the garden.