The Microsoft Immersive reader only works on wiki Pages in Canvas at this time. You can find more information here:
To confirm this does not mean stock pages from an institution that provides curriculum the reader works specifically for teacher-created pages?
I know that it is a long-shot, but it has been a few months since the initial post. Any update on whether or not the Immersive Reader works on Quizzes?
Speak it is a Chrome extension and works in quizzes. You highlight the question right click on the question and select speak it from the drop-down menu. It is not sexy or smooth but it seems to get it done.