Now, what about a situation where you want to ask your students to do Quiz #3, for example. You don't want to have to tell them to go to roadtogrammar.com and then click on quiz number 3. You want to give a direct link.
Simple. Just give them this link: www.roadtogrammar.com?3 to go directly to quiz 3. To go directly to any quiz, just add a question mark and the quiz number after the URL.