He is a very serious student.

He is a very serious student.

I know this is sudden, but could you arrange a time for me to meet with the president?

Kazutoshi is my best friend.

How long is the execution time of this program?

Let's meet at the station at five o'clock.

I wake up at nine o'clock every day.

I wake up at six o'clock every day.

I wake up at eight o'clock every day.

The meeting will start at two o'clock.