The library is (next to the post office).(对划线部分提问)

问题描述:

The library is (next to the post office).(对划线部分提问)

The library is next to the post office.(图书馆在邮局旁边)
next to the post office表示在邮局旁边,是一个方位,用Where提问:Where is the library?

where is the library