导读：人与人之间还有另一种关系，他们彼此相处十分融洽，你能猜猜这是什么关系吗？
My sister and a boy are .
One day, the boy tells her that a bird builds a nest in the tree next to the classroom.
“What bird is it?” my sister asks.
“I don’t see the bird, Miss. I only see the nest,” the boy says.
“Can you tell me what the nest looks like?” my sister asks with a smile.
The little boy thinks for a second and says, “Well, Miss, it looks just like your hair!”
The other students laugh loudly. My sister is not angry. She just laughs too.

阅读小帮手
nest n. 鸟巢 build v. 建造 only adv. 只
laugh v. 大笑 loudly adv. 大声地
我来试试
读完故事，你知道“我”的姐姐和小男孩是什么关系吗？请将答案写在文中横线上。

A.good friends
B.neighbours
C.teacher and student

C