Fast food restaurants are popular in the United States because they are typical of the American (11) . First of all, a customer may wear any kind of clothing there. Second, the (12) there is fast. People who are busy do not want to spend time (13) theirown food or waiting for a long time while someone else is making it. In fast food restaurants the food is usually ready before a customer (14) it.Finally, the food in a fast food restaurant is not expensive. Many customers may not be able to afford to eat at a more (15) restaurant very often.