He followed the footprints left on the snow.

He shot an arrow at the target.

I will attend the meeting tomorrow.

We are scheduled to have an important meeting tomorrow.

She was collecting shells on the beach.

He belongs to the Japanese navy.

The seawater of this beach is very clean.

He belongs to the upper class of society.

It's not appropriate for me to intervene in his problem.

We are working hard to improve our service.