"Mae e'n bwysig."
Translation:He is important.
I gave the correct answer and it still marks me wrong. Previously I gave "It's important" and that was wrong too. I feel picked on. sob
Hmm. Not sure what might be happening here, then. I have just tested both "it is important" and "it's important" and both work.
Check that you are not putting a space next to the apostrophe. If you are using a non-English keyboard, perhaps check that you are not putting in an accent/diacritic instead of the apostrophe.