"Surely Corinna does not live alone?"
Translation:Num Corinna sola habitat?
Surely that means that corinna lives alone, not that she does not live alone.
Bill, have a look at the notes for this chapter: https://www.duolingo.com/skill/la/places/tips-and-notes
Num The particle num indicates that the speaker expects a negative answer; the speaker would be surprised if someone answered yes.
I suppose in this case the 'surely' is a fixed negative. Hope someone can eloborate on this!!
It's not surely, it's "surely not" = num.
Word by word: "Surely not" Corinna lives alone.
(Then, we have to change the word order in English, to agree with the English grammar order.)