Mr. Nakagawa is my best friend.

Mr. Hatanaka is my best friend.

He is in the middle of studying for the exam.

He is in the midst of studying for the exam.

Mr. Nakai is my best friend.

He turned the small knob of the door and entered the room.

Please give me a glass of water.

He drank water.

In the old days, people used to draw water directly from the river and drink it.

The water-colored dress suits you very well.