Is "bir asır, bir sene, bir hafta, bir gün" also acceptable?
Of course :)
Sometimes when there is ''bir'' it accepts the answers without ''a'' ,sometimes not.Is there a specific rule or something?
And why is ''Yüzyıl , yıl ,hafta , gün.'' not accepted?
The reasoning behind this is that if you do not include "bir" in this sentence, it gets very messy in Turkish and hard to understand. I wish I had a better explanation :)
Thanks a lot! :)