What is the preface or introduction to a book?

a page at the front of a book that lists units and chapters with their page numbers
an alphabetical list of all the specialized words and terms used in the book and their definitions
a statement of the author’s purpose in writing the book, which may include suggestions for using the book
an alphabetical list of all topics covered in the book and the pages on which they can be found

Which of these sentences is the correct one?

Read this excerpt from tim o’brien‘s “ambush” “i had already pulled the pin on a grenade. i had come to a crouch” which literary device is most clearly shown in this excerpt?

Before ending this lesson, take a moment to review an informative research essay you have written. you’ve probably already written a conclusion to the essay. but is it the best conclusion it can be? does it properly summarize the main subtopics of your essay? does it state in one or two sentences the “so what” of your topic. if your topic was abraham lincoln, your essay shouldn’t be just about abraham lincoln. it should answer, “so what about abraham lincoln? ” take five or ten minutes, and looking only at that single paragraph, revise your conclusion