Not sure what your question is. With "wie geht es euch?" the speaker is addressing more than one person, he also knows them well enough to not use the formal address "Ihnen."
So, the variants are:
"Wie geht es euch?" - Speaker is addressing more than one person and he knows them well enough to use the informal address.
"Wie geht es dir?" - Speaker is addressing a single person and he knows him/her well enough to use the informal address.
"Wie geht es Ihnen?" - Speaker is addressing either one or more than one person that he does not know well enough to use the informal address.
Duolingo could help us collect our favorite comments by allowing us to 'star' a comment, then provide a way for us to filter/view/search our favorite ones... Otherwise, how could one find ever again a helpful comment like Schorschi's?
Also, I think that a way to filter the comments we upvote would be very interesting, since not every upvote is given for it being helpful, but they can be interesting, funny etc..
I imagine the idea is to leave room for the question.
a: I am going to the cinema tomorrow night. b: How are you going? ( by car/bus/walking/)
although I ( british native) use going more than doing, i suppose ( as i also lost a heart) the idea is to cause less confusion later on.
I wrote "How goes it for you?" Not really sure how I'm supposed to automatically know what to change the words to when it has not been explained properly. Re, 'geht' here was only defined as 'goes/going', not 'doing'...it makes me wary to try to write something even if it makes more sense because it wasn't what was explained. (shrugs) "How is it going(for you)." Makes a lot more sense in English. "How are you doing" makes sense to, but only if you are taught that as the phrase to say and not when you are trying to translate it literally. I think I'm rambling...