The conversation between human and AI assistant.
My questions haven't changed. Why are they now being marked as needing improvement?
Well, I've noticed that some of my questions on previous homework assignments have now been marked as needing improvement, even though they were accepted when I originally submitted them.
Ah, I see. It's possible that new guidelines or standards have been implemented since you submitted your initial questions, which could explain why they are now being marked as needing improvement.