when doing listening quizzes, there's the challenge of homophones. Many of these can be handled with pitch accent but a lot of peeps aren't studying them nor good enough to discern them.
I think an interesting solution would be a button on the side of the quiz that if pressed lists all the homophones (that you've studied) that are not the correct answer similar to the "click to show definition" button on certain questions.
Personally, I think the button should punish you with a wrong answer if the word has no known homophones but I feel that might be a little cruel.
