Read the story and answer the questions to test your comprehension.
Hula hoops have been popular for many years but their exact origin is unknown. In the past, they have been made from willow, rattan, grapevines and grasses, all because they are flexible and lightweight. Now hula hoops are made mostly from hollow plastic and measure, on average, 28 inches. There are people who "hoop," as it's called, for a living and to lose weight.