Is there a post office in the neighborhood?yes,there is on the street .

问题描述:

Is there a post office in the neighborhood?yes,there is on the street .
A:it B:ones C:the one D:one

我觉得选D.
这里并非特指,所以不选C.不是复数,所以不选B.
至于A,there is it.显然不符合语法.