Mary has ambition is one sentence by itself. She has strong work ethic is another sentence. Combining the two turn it into a run-on sentence.
Hi !!
<em>The sentence which has a pronoun-antecedent agreement error is </em>► <u> SENTENCE 2</u>
It was common for an enslaved person to stop there on <u><em>their</em></u> way to the North.
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<em>It should be ►</em>
It was common for an enslaved person to stop there on <em><u>his</u></em> way to the North.
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Answer:
The American dream, to some families, might mean pursuing a happy life with a stable job, a family, and wealth or success in life. The American dream is made possible due to equal opportunity to all. To some people, this dream isn’t possible, it is just a dream. Although it’s not easy to achieve the American dream, with passion, hard work and dedication, it is very possible to achieve.
The focus of the literary analysis should be focus on whether or not these events are significant to your claim.
I hope that's help:)