engages the reader
teaches the reader something useful (a new way of thinking about the essay in question)
helps the reader to see the bigger picture that the summarized essay is a part of, and
helps you as the writer to gain a deeper understanding of the issues and arguments of the essay being summarized.
D.
It means to make. For an example, "I'm going to suffix some pie".
The topic sentence is, of course, a sentence where you state the main topic of your paper. You want people to know your topic as soon as possible. Therefore, answers A and D are obviously places you would most commonly put your topic sentence. However, you can also put it in your body of your paper. But the one place you never want to put your topic sentence is answer C, in your conclusion paragraph.
The first one. They are two separate sentences.
.org does because org is short for organisation.
