I have reported it and several times, as it's not the first time I'm practicing this exercise. In English we definitely do not need the "it" in this sentence. I find it very frustrating to be judged by Duolingo in our native language. What is important to us, is to be judged on the language we are studying.
Does this have a sort of a boss-like undertone or is it a regular neutral level question to ask?
I would say the undertone here is of gloom, for having to repeat everything...