I’ve uploaded lesson 23: “Imperfect Middle and Passive” to my online grammar. It has six vocabulary exercises, but is still missing a couple of practice exercises for recognizing imperfect middle/passive forms that I will add over the next few days.
The vocabulary exercises consist of a flashcard set, four brief drag and drop vocabulary games, and a practice vocabulary quiz.
Please don’t hesitate to let me know if you notice any typographical error or other problem.