55．A．health                   B．healthing               C．healthy                  D．doing

A

To save time，many Americans often buy fast food．On holidays，families enjoy nice meals at home．For example，on Thanksgiving Day，the fourth Thursday in November，families come together for a dinner．Usually they enjoy a big turkey and pumpkin pies（南瓜馅饼）．

The United States is famous for its fast food，such as hamburgers，sandwiches，pizzas，and ice creams．People can easily find fast food restaurants，such as McDonald's（麦当劳）and Kentucky Fried Chicken（肯德基），in most of the big cities in the world．

There are many foreign restaurants in the USA．Chinese，Italian and French cooking are the most popular．People can buy foreign foods in these restaurants．These years，many people have paid more and more attention to（越来越关心）their health．They come to eat foods with little fat．Many of them are also worried because some people like to put something in the foods．This can make the foods good-looking，but it is not good for man's health．

54．A．of                         B．about                    C．with                             D．in

53．A．to                         B．with                      C．out of                    D．from