Fast food restaurants are popular in the United States because they are typical of the American (1) First of all, a customer may wear any kind of clothing there. Second, the (2) there is fast. People who are busy do not want to spend time (3) their own 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 (4) 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 (5) restaurant very often.