He was killing time by reading a book while waiting.

I jog for half an hour every day.

As the time limit approached, I began to panic.

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.