The river near our village is about____long.

问题描述:

The river near our village is about____long.
A three-hundred-metre B three-hundred-metres C treee hundred metres
答案是C为什么? A或者B什么时候用,谢谢!

C treee hundred metres
A做定语是时候用,如a three-hundred-metre bridge.B three-hundred-metres 是没有的