Hi,
Current system of reading has two irritating features and they can be easily fixed (I suppose):
1. If you press enter key, while haven't written anything (which sometimes happen by accident) it's treated as if you got it right.
But if you would know you would simply type the answer.
I think system should ignore such action - that is you still have to type.
2. Also if you press SHOW then it treats it as a good answer. Shouldn't it be otherwise?
Then it would be logical, that is how SHOW button works in all the others exercises. And it's logical that is what you press if you don't know the pronunciation yet.
I know these things are pet peeves and I can use CORRECT button, but I've always perceived it as a tool to correct grading system, not me.