题目内容：

The students will have () during May DayA.five-day holiday B.five days' holiday C.five day holiday

优质解答

B.five days' holiday
这是用名词所有格作定语修饰holiday
five days' holiday=a five-day holiday
A答案前少了一个a,因此A不对.
I'm taking two weeks' holiday.我正在休假两星期.