"בכל זאת, זה בלתי אפשרי."
Translation:Anyway, it is impossible.
I translated this as 'all the same' and was marked incorrect. However, 'in any case' is almost the same as 'in any case', which was given as the correct answer. Often in English there are several idiomatic that are almost equivalent, but which Duo Lingo doesn't always recognise.