Quiz item

In Quiz 1.9.1, I was asked to choose the right sentence. I got it wrong. In what way is "Wo hai ke yi, xiexie" more correct than "Wo hen hao, xiexie."?

Hi there, thank you for your post. I'm a little bit confused to be honest, because I can't find your sample sentences in the quiz that you mentioned. Could you please let me know the quiz number, question and possible answers? That would be great, thank you.

Sorry, it was in quiz 1.7.1 Use the right sentence from below: I am well, thanks. I've made a mistake, thanks. I can too, thanks. Correct I am well. And you? Why is the third deemed "correct"?

I have a different question, but I thought this topic was the best to post it on. In lesson 1.3, I took the quiz and I had a question on one of the ones I got wrong: "What is the correct way to say "Not really good?" I clicked, "Bu hen hao" (Not very good), and it marked me wrong, saying that "Bu tai Hao" (Not too good) was the right answer. Don't they mean basically the same thing?