The pen you bought didn't work.是什么从句?

The pen you bought didn't work.是什么从句?
The pen you bought didn't work.是什么从句?

The pen you bought didn't work.是什么从句?
你好!
正确答案为：
这是一个定语从句
you bough 做the pen的定语,翻译为 你买的那支笔
你买的那支笔不能用了.

定语从句呗，ten pen 是bought的宾语，连接词that做宾语指代ten pen 可以省略