Consider these situations: You have just read an excellent book and want to tell a friend about it. You have seen an exciting movie and want to ___11___ your instructor to go to see it. You have heard an inspiring lecture, and want to ___12___ your newly found knowledge with a roommate who didn’t attend the lecture.
How to give this type of ___13___? You could tell everything you ___14___ about the book, movie, or lecture, but you will probably just want to select the ___15___ points and tell these to your listener. This, of course, is called summarizing.
To create a good summary—one that is both accurate and brief—you need to follow two steps. First, ___16___ information by reading, taking notes, or listening carefully so that your summary is as brief as possible but still accurate and ___17___. Your audience will help you decide how thorough you need to be. If you give your summary to ___18___, perhaps for an examination, it will need to be extremely complete ___19___ accurate. You will need to keep in mind any ___20___ your instructor might have given you during the lecture to indicate what he or she considers especially important. If you are summarizing a movie for a friend, you can be less thorough. Part of the task of summarizing is knowing what to include and what to leave out.
（　　）

A. but

B. or

C. as well as

D. instead of