It is perfectly fine and should be accepted. If it wasn't it would mean there is a technical flaw. Please report this directly
I don’t remember very well but I think it was spoken in Greek and we had to write it in Greek.
I wrote έψιλον and it marked it wrong and said the correct answer was ε.
Of course, since it was spoken there was no way of knowing whether Duo wanted the letter or the longer name of the letter.
The whole ABC section is littered with these problems and should be completely rewritten
Nearly all of the Duolingo sections are good but this one is terrible and of course it’s the first one new Duolingo users try so it puts them off unnecessarily
Of course, I forgot about the Listening Exercises...sorry. I just checked out the listening and it says: "το γράμμα ε"... So, it would be the letter, not the word that was expected. You've come a long way and reached a high level in Greek so I wouldn't worry too much about these details as long as you know the practical usage of the letters.
And we definitely agree with your advice. In fact, the ABC skill has been completely rewritten for the new tree not only has it made learning more efficient but it's also more interesting.
Thank you for your comments they are always constructive and a great help.
We've had comments about this and have it on our list of things to change. The audio is out of our hands but every so often Duo does a review and makes corrections. In general, the audio seems pretty clear. I hope this item didn't cause you too much trouble. Thanks for reporting it.
There's a glitch in the computer program. I'll disable this exercise so you won't have it again as a Listening exercise. But even better look at the Greek letters in the Tips & notes
and also here
TIPS TO MAKE LEARNING EASIER + HOW TO REPORT A PROBLEM…..
You've progressed a great deal so I'm sure you know the letters well. In fact I'd advise you to not try to get each skill to 100% before going on to the next skill. Doing a little...about half of a skill...and moving on then returning to the first one will result in much better retention of what you are learning.