on the holiday 还是in the holiday呢，为什么

Question

可是剑桥二级课本上一个说in the holiday,另一个说on the holidays

Answer 1

in holiday 泛指放假，但说话人说话的时候并不在放假。
如，i'd like to stay with my families in holiday.

in the holiday 指特定的假期，根据上文的延续。
如，Christmas is a spcial holiday in western countries. In the holiday, people usually stay with their families.

on holiday 处于放假的状态
如，i'm on holiday now.类似有on duty 上班中

Answer 2

in the holiday .because我们只说在假期里，而不是在假期上！！！

Answer 3

没多大区别，口语上不分那么清的

Answer 4

in the holiday 在假日
one the holidays 在假期

Answer 5

on vacation
in the holiday