I have a reading passage, then a lecturer casts doubt on the reading using three main points. I want to write a summary of the reading and the lecture. Now I want to ask you about this conclusion:
The reading says .... . However, the lecturer mentions.... . the lecturer gives a compelling argument (or compelling arguments ?) to clarify his point view which demonstrate that the lecturer was correct (or true?)
I also want to ask about which in that sentence. Have I used it correctly?
If you know a better way to say that please let me know.