There are two correctly punctuated sentences here:
1. That's the other thing I learned: being active is just as important as eating better foods.
2. Over the years, many of us have read the words of Henry B. Adams: "A teacher affects eternity; sge can never tell where her influence stops."
Stylistic device where the writer repeats the same word or phrase for the proper use of emphasis is called repetition. Authors use it both in poetry and in prose to make the idea clearer. There are many ways how authors employ repetition as it embraces many types such as anaphora, antithesis, epiphora and so on. All this tools are meant to emphasize the meaning of the words but they express this emphasis in different ways.
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Answer:
james dickey wrote the poem the lifeguard
The teacher asked the students where they had been so long.
She asked the children whether they could swim.
Rubel said with grief that he was a fool.
The poor main exclaimed with grief that he had lost everything.
I asked him whether he might get GPA-5 in exam.
