试题要求：
Many people know the history of Black Friday.
试题解析：
答案：B
解析：
根据文中第一段 but few people know the history of holiday shopping.可知很少人知道它的历史。
考点：阅读判断,2015.10
Many people know the history of Black Friday.
根据文中第一段 but few people know the history of holiday shopping.可知很少人知道它的历史。