Answer:
Experience and Perception of teacher in his mind.
Explanation:
When university students in the United States walk into a classroom on the first day, they observe that there is a person standing in the front of the classroom with a folder open on a podium and a stack of papers on the desk. Based on their experience, they decide that this must be the instructor. One student approaches the person and asks, "Are you the instructor?"
The student's question is an example of his Experience and Perception.
We need the story though to help you...
One should collect evidence and examples from the text itself. Hope this helps!
The word are is a Linking Verb
The answer is "she" -- which was "heo" in Old English. (He, me, and we have all been relatively unchanged since the time of Old English.)