第5部分：补全短文(第46～50题，每题2分，共10分)
下面的短文有5处空白，短文后有6个句子，其中5个取自短文，请根据短文内容将其分别放回原有位置，以恢复文章原貌。
A. As a result, its American origins and roots ate often quickly forgotten.
B. But this theory fails to explain why American films, music, and television programs are so popular in themselves.
C. American in origin, informal clothing has become the world's first truly universal style.
D. The BBC, for example, banned rock and roll until 1962.
E. American food has become popular around the world too.
F. This spirit is variously described as being young and free, optimistic and confident, informal and disrespectful.