Really... Why is it "двух" the question can confuse even a native speaker like me...
If I put, 'wait until 2:00' it is marked as wrong. This should also be a correct form.
it said "o clock" was incorrect, it should have been accepted. I don't know how else to write it and being a native english speaker wouldn't write it with the '
That's just how our schools taught us, I'm pretty sure that in every Russian school/university/colledge it has been given as "X time o'clock" pretending to be the British version, speaking of what native speakers think about it, I'm not sure what they do (: