Bosnian was certainly the tricky one for me: is it really the same clip every time? The first time I missed it, I thought I heard "bagus" so I guessed Malay. The second time I missed it I guess I really have no excuse! Still I got 600, and I don't feel bad for not being able to distinguish Gujarati from Punjabi from Urdu. It's been some time since I heard any of those languages spoken.