He is a famous calligrapher.

The incident was covered in newspapers nationwide.

This computer file will self-execute.

We woke up early to explore the cave.

The introduction of a new system takes time and cost.

We decided to introduce a new system.

That pupil goes to school every day.

Last night, a large-scale riot broke out in the city.

I talked about old memories with my schoolmate.

The discussion about the regional system in Japan is not over yet.