How do you 'copy and paste?'

@Storm1752 Put your mouse arrow on the address bar. Top of page, usually starts with http. Click it and it will change color, click the right mouse button and a little menu will appear, one of the options will be copy, click that and your computer will temporarily store the link. Go to the dialogue box where you write your comments and right click again and a menu will again appear, click on paste and voila, you're done(sometimes you have to fuss a little with the address bar, try holding the left button down and sweeping from one end to the other, then right click)