-----Where is your home?------It's about two miles____our school.

选C
It's about two miles north of our school它在我们学校以北大约两英里处。

注释：north做副词，表示“在北方, 向北方”，前面不加介词。

B

in 是在。。。的意思。比如Shanghai is in the east of China.
on 是与。。接壤的意思。比如Russia is on the north of China.
to 是与。。隔海相望的意思。比如Japan is to the east of China.

这个题就是考介词的啊//

选c

选C
in the north of school：表示学校内部的北面，比如学校的北教学楼。
to the north of school: 表示home与学校不接壤，不相邻。
on the north of school: 表示home与学校相邻。如学校旁的道路。
但以上north均为名词。
此题C项north为副词,副词前不能用介词，而且是前用距离表示的。
记住两点：
1 some place is in/on/to the north/south/... of some place句型。(方向词为名词)
2 some place is how many distances north/south/... of some place.。(方向词为副词)
回去看单词表:north兼具名词，副词，形容词的词性
故
显然此题选C

c