Doing the German course and i am an English teacher in Germany (and have been for 15 years) the English translations are full of German-speaker errors . It is painfully incorrect or as is the case with new material the English translations are not properly beta tested before release. Many many basic errors. Eg: "who are you introducing to me?" is accepted, but the more common "who are are you introducing me to?" Is not... sadly this is not an isolated case...