I have to write about a poem we read in class这句话是什么从句,主句是否缺宾语

问题描述:

I have to write about a poem we read in class这句话是什么从句,主句是否缺宾语

I have to write about a poem【 we read in class】括号内是定语从句,修饰peom,主句是
“I have to write about a poem”句子结构完整.