"The animals destroy the building rapidly."
Translation:Animalia aedificium rapide delent.
It sounds like you put the correct answer in a different order other than what would give you an accurate translation. That would be like saying "I am hungry" and you translate it as "am hungry I" see how that would be wrong? Because you didnt get it as a correct translation, try reviewing why you got the question wrong and then you'll be able to do better.