And regarding the questions, the Russian is still reasonably understandable (although when you read some of them, you get a little surprised, as if they're from a different school curriculum). You should look at the history questions... There are questions that contradict not only the textbook but also history itself... There are genuinely absurd questions. I came across one like this: Who of the following people was a contemporary of Dmitry Donskoy:
4 names, none of which mean anything to me... I just chose one at random. Later, when the tutor checked it, she told me that there was some kind of soldier named Vasya Pupkin (I don't remember the exact name... but something like that) who fought in the Battle of Kulikovo and didn't stand out in any way (but he was mentioned once in the textbook)... Seriously, am I supposed to know all the soldiers who fought in the Battle of Kulikovo? IMO, it's complete nonsense.