she hopes she will have a ___ holiday next year

问题描述:

she hopes she will have a ___ holiday next year
a:two month
b:two months
c;two-month
d:two-months
答案是什么,最好能给我详细解释一下各个选项的错误原因,
能不能帮我解释一下其他选项错在那里呢?

c;two-month
量词+名词,两个月的假期.这是这类词组合的基本用法.