My answer is not 100% correct, take what you think will help you :) I hope this helps
It is important as she needs to learn how to react to important situations. Having a good impression towards people will later on bring many benefits to her.
Helen Keller's father didn't discipline his child, and now his child. She is also deaf and blind which makes things more challenging for her to learn so this gives Helen more motivation to teach her.
The type of pronoun is used to show the connection between the antecedent and the subordinate clause of a sentence is a relative pronoun. Relative pronouns are used to link a clause or phrase to a noun or pronoun. Hope this helped!