The report came into the school that he had left.请问这是个什么从句.

The report came into the school that he had left.请问这是个什么从句.
The report came into the school that he had left.请问这是个什么从句.

The report came into the school that he had left.请问这是个什么从句.
同位语从句,that引导的从句修饰的是report

名词性从句，that he had left修饰并解释是哪个school（school是先行词，是名词）

定语从句，修饰the school,表示：他曾经呆过的那所学校。

同位语从句

定语从句