Passive: it's NOT about who but about WHAT.
A: Elise
creates LessonUps every week.- P: LessonUps are created every week (by Elise).
A: Froukje and Charlotte drank a lot of tea yesterday.
- P: A lot of tea was drunk yesterday (by Froukje and Charlotte).
A: Marion checked off my reading task.
- P: My reading task was checked off (by Marion).