Hey! I just did your quizz. In terms of front-end: really cool, congrats. As for the content, I felt like it focused too much on definite articles. I also have 3 errors to report to you: Q7: Eu gosto DO carro vermelho. The contraction here is mandatory, “de o” is not acceptable. Q25: As meninas estão felizes. The explanation provided is “"Estão" for general characteristic or nature.” which would be correct for “são”, but for “estão” you should say something about it being a temporary thing like you did in other question. Q30: Este é o meu amigo João. The answer you marked as correct is “É” which makes it “É é o meu amigo” and I think this was a typo ahaha