Kei is my best friend.

The sound of the flowing water is pleasant to hear.

If you follow this path, a beautiful garden will spread out.

Megumi is my best friend.

He had a confused look on his face.

He is learning the past tense in Japanese.

He entered the meeting room carrying important documents in his hand.

He wrote his name using the old form '攜'.

He spoke to the teacher using respectful language.

If you cross this footbridge, you will arrive at the park.