Give it a couple seconds to load and watch reflector.com's Jennifer Swartz quiz people with U.S. Citizenship Test questions during the Uptown Umbrella Market in Greenville on June 29 as part of our 30 Days of the Fourth promotion. Check out the video to see how they do, and come out to the Umbrella Market next Wednesday if you want to take the quiz. Click here to take our 30 Days of the Fourth quiz and earn a chance to win a summer prize pack.