Here's a lesson based on the topic of confinement and cabin fever which is meant for C1/C2 students and contains a Quizlet set for review.
It can be used for self-study or with groups as it incorporates discussion prompts. These prompts lend themselves well to a Flipgrid speaking task. (click here to find out more)
I've refined the earlier version of this lesson and incorporated a collocation/lexical chunk sorting task for greater cognitive depth.