"주인은 개에게 가자고 했어요."
Translation:The owner said let's go to the dog.
The same complaints as before, this translation is essentially the same as the one I wrote but only slightly different - it shouldn't be marked as incorrect.
The developers can only think of that many alternatives while creating the course. That's why we, as beta users, should report every time we encounter missing answers (using the little flag icon).