in the context of the whole passage, the last sentence serves to responses establish that the author associates her mother's language with the past, not the present establish that the author associates her mother's language with the past, not the present validate the form of english the author hears from her mother validate the form of english the author hears from her mother discredit the form of english the author learned from books discredit the form of english the author learned from books summarize the characteristics of the mother's way of speaking summarize the characteristics of the mother's way of speaking reiterate the thesis that children imitate the language of their parents