There are five languages labs in this building.One is on the second floor and __on the third floor

题目

There are five languages labs in this building.One is on the second floor and __on the third floor
A.other B.the other C.other four D.the others 为什么D是错的

答案

One is on the second floor and __on the third floor,你可以看到这里介词是is,表示单数,and 后面省略了is,用的是短语one~the other .如果and后面有系动词are 就可以选d.这里把在三楼的lab看成同一类型了,不要考虑...