试题要求：
Black Friday started in the USA.
试题解析：
答案：A
解析：
根据文中，it is believed that the first Black Friday was held in the 1970s in the USA可知第一个黑五在美国。
考点：阅读判断,2015.10
Black Friday started in the USA.
根据文中，it is believed that the first Black Friday was held in the 1970s in the USA可知第一个黑五在美国。