阅读下面的短文，在空格处填入一个恰当的词或使用括号中词语的正确形式填空。

    To save time, many Americans buy foods which can be （quick）made ready for the table. On holidays, families enjoy （have）delicious meals. For example. On Thanksgiving Day, the （four）Thursday in November, family members get together for a turkey dinner with pumpkin pie.

    The United States is known the world for （it）fast food, such as （hamburger）, sandwiches, pizzas, salad bars, many kinds of ice-cream. People can easily （find）fast food chains（连锁店）, such as McDonalds' and KFC, in most of the big cities in the world. However, many people think that fast food isn't （health）for us although it can help people save （many）time.