If you tap on "hivyo" to see the meaning, it says "so". But if you then write in "so", you are marked incorrect, and the correct answer is given as "that way". Get your act together, Duolingo!
Since when does so (hivyo) also mean that way (njia hiyo)?...
It's an English idiom in some contexts: "I told him not to talk that way in front of our parents." Nilimwambia asizungumze hivyo mbele ya wazee wetu.
It's just accepted "So" for me - April 19. 2019.
And didnt for me May 2019... What is up, duo?