We are hosting teens from Chengdu for 2 weeks. Will they eat "typical" American fast food?

Will they eat donuts, pizza, hamburgers & fries, cokes etc & if not what do you suggest I feed them.? We live in Arlington, Texas & have access to many sorts of entertainment. What to teens do in China for entertainment? Swim? movies? Shopping? Video games for the boys? Go to a profesional Baseball game? Barnum Bailey Circus will be in town then, would they like something like that? All ideas would be greatly appreciated as to what to do with them during their "free time" while they are in the United States.