Why not "Ābra"?
They made a mistake; it should indeed be ābra. Keep in mind that this course is still in beta. I reported it.
Thank you!
I think they've fixed it. The translation is now "He praises the woman and the boys", so "Ābre" is correct as it is the accusative form.
Ah, good. For the record, it used to say "The woman praises the boys".