______________ (manage) files on your computer is like managing books on your bookshelf. You can __________(move) a file or copy a file from one folder to another or from one disk to another. It is like __________(move) a book on your bookshelf to a new location. You can also delete a file from a folder or a disk. It is like moving away a book from your bookshelf. The easiest way to move, copy or delete a file is __________ (click) the right key of the mouse and work with the shortcut menu after _________(select) the file.