"Our professor talked about paganism" should be accepted
I agree, that's what I wrote and I don't understand why it wasn't accepted.
This has been corrected and now "Our professor talked about paganism." should be accepted
"Our professor spoke on paganism" was not accepted, but is a common expression to denote the topic of a speech/lecture. Could it please be considered for inclusion?
Why not : The teacher spoke to us about paganism ?
This was answered in a comment above yours.
I don't see the answer on this page.