1)
a) "The young lady's countenance, which had before worn an almost livid look of hatred, assumed a smile that perhaps was scarcely more agreeable"
"Miss Sedley was almost as flurried at the act of defiance as Miss Jemina had been"
"Miss Sedley was exceeding alarmed at this act of insubordination"


b) The state of mind of the two girls is: nervous and defiant worried.

2)
a) "Thank God, I'm out of Chiswick"
"I hate the whole house. I hope I may never set eyes on it again"
Rebecca has such feelings because she only had insults and outrage from Miss Pinkerton, because she has never had friends except from Amelia and because she hated French, who was the language taught in the school.

b) ""O Rebecca, Rebacca, for shame!" cried Miss Sedley; for this was the greatest blasphemy (...)
Amelia is shocked by Rebecca's action and conversation. She doesn't understand her feelings.

c) Amelia: gentle, simple, passive, calm, submissive, conformist
Rebecca: revengeful, authoritarian, passionate, impulsive

3) 
a) The narrator is a voice outside the story although he makes comments about the characters

b) 1. It is about an old man who told the author about a dream he has had. It was about a terror of his youth: the cruel Dr. Raine.
2. I think that it could be a justification for Amelia's reaction.

c) The adjective "heroical" is used ironically.

d) The reader is not free to judge the character because the narrator gives him his judgment which influences the reader's opinion.

4) Addresses the reader: "Nay, with some persons those awes......"; "Well, well, Miss Sedley was....."
Digresses: "I know, for instance...."
Makes general comments: "The world is a looking-glass..."
Offers more generalizations: "
Refers to the writing of the novel: "The heroical act mentioned in the last chapter..."