Your pages don't match up with my book, which is maybe why no one responded, but I found the questions anyway.
#17 Hollywood Producers
I think this is one of the toughest questions in the book, but it goes back to the idea in the two preceding sentences. Physicists come up with ideas when they don't how to solve a problem. The amount of stuff they know is limited. To suddenly compare these physicists to producers is to imply that the producers don't know much either. So (A) is your best answer.
#12 Work Out
My prephrase here is "figure out." White women were beginning to put two and two together, figuring out that slavery was similar to the oppression of women. "Formulate" is the best answer. "Solve" does NOT work, because women were not solving the problem. They were just beginning to be able to express that there was a problem. "Exercise" and "struggle for" make no sense when inserted into the sentence (how do you "struggle for the analogy." And "conciliate" means to win over, so it doesn't make sense, either.
#13 Parallel Reasoning Argument
The line reference is for a complete sentence, so we teach that you only read that line reference when answering the question. Rephrased, lines 18 to 21 state that these northern white women who wanted a better life used the arguments that the oppression of women made it hard for them to be good mothers, homemakers, and wives.
So which answer choice echoes this idea? Choice (B).
#21 Trabb's boy
When the line reference is just a single word or phrase (and not a complete sentence), the answer lies outside of the line reference. This one depends on your understanding of the passage as a whole, and I find that students really struggle with this passage. The narrator has strolled back into town and he seems to think he's important ("my position was a distinguished one" line 9). The townspeople, on the other hand, are gossiping about him and coming out to get a look at him. Based on Trabb's boys actions, I am guessing that the narrator acted cowardly at one point in the past, because Trabb's boy is clearly mocking him by acting scared. The spectators laugh at Trabb's boy mocking the narrator ("hailed with the greatest joy").
The final paragraph (which is irrelevant to the question, but still important to understand) shows Trabb's boy acting like the narrator, pretending to be too good to talk to anyone. It doesn't say if this haughty attitude happened in the past, but it's definitely happening that day. The narrator thinks he is distinguished and the people come out to look at him, but he never stops to talk to anyone. He acts like he doesn't know them (thus, the "don't know yah!" imitation of the boy, who is also wearing a bag that looks like the narrator's coat).