英语语法求救OurschoolbuildingbuildingandourclassroomisonthethirdA,afourstoreyed,floorB,afourstoreys,floorC,fourstoreys,groundD,afourstorey,ground这四个答麻烦一一帮忙

Question

英语语法求救
Our school building____ building and our classroom is on the third____
A, a four storeyed , floor B, a four storeys , floor
C, four storeys , ground D, a four storey , ground
这四个答麻烦一一帮忙分析下,尤其是AB区别不了啊.

Answer 1

A.
four storeyed是常用表达方式；记住就行.
B是肯定不对的,当名词作定语时,一般是不用复数形式的（除非单词本身就是复数形式,如communications(通讯）,sports(其实是个形容词,表示运动的,和运动有关的）等,从这点看,选项D中的a four storey是可以的,但ground就不行了.