Why are some lessons locked?
I am currently learning German accusative pronouns. But when I open the section, only one lesson (the first one) out of three is active. I have successfully done it and would like to move on to lesson 2, but it is faded and it says that it is "locked". Why? What do I have to do to unlock it?
Yes, I did but only because I chose the "test out" option. I didn't want to do that, but it seemed like there was no other solution. I prefer to go through each lesson step by step. So, if in the future I am locked out of some of the lessons and there is no way of getting into them apart from "test out", I would like to know why and, possibly, how to avoid that. But thanks for you answer and interest!