Refueling [The Run Series, #2] 3. How does the author use Anna's interaction with the other characters is the story to advance to plot?

Twenty years gone, and i am back again on my own island. as for my change of skin, that is a charm athena, hope of soldiers, uses as she will; she has the knack to make me seem a beggar man sometimes and sometimes young, with finer clothes about me. it is no hard thing for the gods of heaven to glorify a man or bring him low. —the odyssey, homer based on what odysseus says in the passage, what has he learned? humans can become like gods. humans are under the gods’ control. humans can change from beggars to soldiers.

Dogs make wonderful pets because they us stay happy and healthy. the topic sentence is "dogs make wonderful pets." , is this correct? i keep doubting myself.

The greatest gift the sumerians gave the world was the invention of writing. the sumerians were wealthy people. they needed some way to keep track of what they owned. they began drawing pictures. they used a reed as a pen. they drew on soft pieces of clay. the soft clay was then dried in the sun. the tablet became a permanent record. later, the sumerian drawings changed into wedge-shaped symbols. this kind of writing is called cuneiform. by putting symbols together, the sumerians could write entire sentences.