a) What do the pronouns (I, my) indicate about what point of view the chapter is written in?
The pronouns indicate that the chapter was written in first person in the point of view of the character Sophie.
b) The verbs indicate that the chapter is written in past tense. When Sophie says that "at the time [she] had only a hazy idea of why I was there", what does this tell the reader about the point of time from which she is narrating?
This tells the reader that the point of time that the character is narrating is the future as she is referring to the event that is taking place as if it happened already. This can been seen when she uses words like 'had' and 'was'.
c) what does the sentence leave the reader to wonder about?
The sentence leaves the reader to wonder what place she is referring to and why she wasn't there anymore.