"What do you know about jazz?"
Translation:Що ви знаєте про джаз?
I used the informal form (ти) the answer used the formal form (ви) and my answer was marked wrong.
Maybe the informal answer isn't added yet. Was your verb also informal (знаєш)?
I also use informal form And it has been marked wrong. And I have a question: which case we have to use with про? Дуже дякую!