He is active as the young leader of this organization.

He instinctively scratched his head when faced with a difficult problem.

He scratched his head when faced with a difficult problem.

You can recycle eggshells and turn them into fertilizer.

Mr. Byou is cleaning the hallway.

He was a great assistance to my project.

His spine is straight, and he has good posture.

Where is the restroom?

He went to search for the ancient ruins.

He was sitting on the chair reading a book.