Ctrl + U will underline text that is selected. Ctrl and the plus sign will superscript text. You need to hold the shift key while doing that, otherwise it subscripts the text.
The keyboard shortcut notation ctrl plus esc means you press the Control key concurrently with the Escape key. On a Windows PC, the Ctrl + Esc shortcut produces the Start Menu.
Ctrl plus J is used to justify text or a paragraph.
Underline
superscript
Magnify the information displayed on the screen.
CTRL C to copy
It does nothing. Pressing CTRL and the + sign zooms in your screen though
It saves the file.
It switches to bold type. If a word or sentence is highlighted, then you press ctrl-b then the word or sentence will be made bold. If you do it again, the word or sentence will be made normal (non-bold).
It reloads the page. Hope this helps! :)
superscript
Ctrl and the plus key.