It's unfair to give him the responsibility.

My mother told me to clean up my room.

Please tell my mother to tell my younger brother to clean his room.

My mother told me to clean up my room.

He attached a memo to the notebook.

He was appointed as the new project leader.

He was alone in the room.

There are a lot of wrigglers in this puddle.

He goes to the gym every day to train his body.

The main part of this project is supported by the cooperation of all of us.