Answer:
studentsshould prepare to begin a dicusion by listening to the teacher
Explanation:
In the first sentence, the "he" is a nominative as it is a subject.
In the second sentence it is an object as the form "me" is actually "I", but "i" is a nominative form and "me" is an objective form.
In the third sentence "Us" is also used in objective form as "us" is an object of an action by "my sister".
No it isnt but i would not be suprised if the conjuring was inspired