题目内容：

The favorite food in the United States is the hamburger, a kind of round sandwich of cooked beef. 1. At fast food restaurants, people order their food, wait a few minutes, and carry it to their tables themselves. People also take their food out of the restaurant and eat it in their cars or in their homes. At some fast food restaurants, people can order their food, pay for it and pick it up without leaving their cars.

2. Most of them sell hamburgers, French fries and milkshakes, which are traditionally popular foods among Americans. In addition, there are many fast food restaurants that serve Chinese food, Mexican food, Italian food, chicken, seafood and ice cream.

The idea of a fast food restaurant is so popular that nearly every kind of food can be found in one. Fast food restaurants are popular. 3.

First, they are not formal restaurants. Customers wear any type of dress when they go to a fast food place. 4. People who are busy do not want to spend time preparing their own food or waiting while someone else prepares it. In fast food restaurants the food is usually ready before the customer even orders it. Finally, most food in a fast food restaurant is not expensive. 5. However, they may not be able to afford a more traditional and more expensive restaurant very often.

A. Second, they are fast.

B. Chinese diets are also welcome.

C. In fact, they reflect American life style.

D. They will go to a good restaurant for important guests.

E. The favorite place to buy a hamburger is a fast food restaurant.

F. Therefore, people can afford to eat at a fast food restaurant often.

G. There are many kinds of fast food restaurants in the United States.