There needs to be a limited number of tries for the speaking questions.
I don't know if it's just me, but I keep having to disable my microphone in order to continue the lesson. There are some words that I just can't pronounce yet no matter how hard I try, but I would still like the practice speaking. Maybe after 10 tries at recording, the question would just be marked incorrect and let you continue? I'm at a point where after 20 tries I'm screaming into my microphone syllable by syllable, and still being told I'm wrong.
This functionally is already part of the iPhone app. If the microphone does not pick up the right sound within three tries (a lot less than ten) it moves on without taking away a heart. However, upon testing this tonight it marked me correct for saying pretty much any random syllables so it may not be the most accurate at this point anyway (at least on the iPhone app). At any rate there does seem to be some precedence for having a limited number of tries before moving on. It's weird you can't see the "skip this question" button though.