Where are the speaking exercises and bonus skills?
I've reached the first checkpoint without once encountering a speaking exercise, and I can't see any slots for bonus skills either. Is this a bug or does this tree not have any?
If it is a bug, is it possible to fix it? I have the same issues in the Russian tree (though this is still in beta so perhaps those elements just haven't been added yet), but not in the Italian and Spanish trees.
At the moment, only the original courses (Spanish, Italian, French, German, Portuguese, English) have bonus skills. This is going to change, but nobody knows how much longer that will take.
Speaking exercises for Dutch do exist, but not on all platforms and browsers. As far as I know, you will only get them when using Chrome. On the apps, a certain percentage of Android users gets them, but not everybody. Also, the voice recognition is not great.