2. Put brackets after the quoted sentences and arrange the numbers. Select the reference number, click the right mouse button and select the font in the pop-up dialog box.
3. In the pop-up Font dialog box, click the "superscript" to make it have a checkmark.
4. Put parentheses after the fully quoted sentence, and put the mouse input status pointer in parentheses. Click Reference in the toolbar to insert a footnote.
5. Select the inserted application, right-click and select the font. Select Superscript and OK in the font dialog box.