the teacher gave me___to finish my homework.

问题描述:

the teacher gave me___to finish my homework.
A two hours time B two hours' time C two hour time D two hour's time
应该选哪个?为什么?

B two hours' time
两个小时先要把小时 hour变复数
然后 两个小时的时间 有个所有格形式 要用's