The bus is too crowed.There isn't enough _____ on it.

问题描述:

The bus is too crowed.There isn't enough _____ on it.
A.place B.room
请问正确答案为什么选择B

The bus is too crowed.There isn't enough (B.room) on it.
句意:这辆公交上太挤了.上面没有足够的空间了.
place是可数名词,有“地点,职位”的意思,要用单数或复数; room作为“空间,余地”意思时是不可数名词,适用于本句中.