[UserScript] Hide answers, not learned items and shuffle cards

Artur said... This is great! Only thing I would ask is for there to be an option to have the answers toggled off by default.
The 'self-study' script does what you're asking.  It evolved from Absalon's hide-answers script.  Plus, it adds a quiz mode if you want to use it.
/t/Userscript-Self-Study-Quiz-Edition-NEW-Listening-Quiz/13191/1