“地点名词”后用which还是where引导定语从句？一个句子分清which、where、whose

人教版高中英语教材有一个句子，译成汉语是：

• 我在一个丛林学校工作，那里的教室是用竹子做的。

回译成英语，这句话可以用如下三种方式表达：

1. I work in a bush school, ____ has some bamboo classrooms.

2. I work in a bush school, ____ the classrooms are made of bamboo.

3. I work in a Bush school, ____ classrooms are made of bamboo.

解析：