Is it necessary to use the pronoun αυτοί? I omitted it which was not accepted
no it is not necessary. seems they've fixed it because i did the same and it was accepted.
You need to change this sentence because is can be translated in both the present and past tense.
ie. "They read us a book yesterday." = past
or "I read a book now." present
I answered this with "Μας διάβασαν ένα βιβλίο."
You're right; thanks! I've added past tense alternatives and your sentence should be accepted from now on.
i wrote αυτοι μας διαβαζουν ενα βιβλιο which is the same as the correct answer it was marked incorrect the only difference i can see is the capital A for Aυτοι
I see another dıfference: your sentence has no accents.
Accents are not optıonal ın Greek, just as dots on the letter ı are not optıonal ın Englısh.
Why "ena" vice "mia" ?
Because βιβλίο is neuter, not feminine.
In order to carry on with questions which demand the use of the Greek alphabet,I need a list of
Greek words. can you do it ?
I wrote "μας διαβάζουνε ένα βιβλίο", which is how many friends of mine would say it. Duolingo flagged it a typo. Is this -ε considered non-standard?