Compete the passage with the words in the box: One is authors and the other is (6)______

III. Compete the passage with the words in the box
.... the library. One is authors and the other is (6)______ . If you know(7)_____the author's name and the title of the book, you can find(8)_____very easy. If the book isn't on the shelf, ask the(9)______to get it for you