the books cover every inch of floor space .they take up a lot of ( ) 1 room 2 place

问题描述:

the books cover every inch of floor space .they take up a lot of ( ) 1 room 2 place
3 area 4 spaces ,请问选择哪个,及分别说出为什么对和错

1 room 空间
(place ,area 是可数名词,应该用复数,而space是不数名词,没有复数形式,故2 3 4 都错)