这是个什么从句,分析下语法结构

题目

这是个什么从句,分析下语法结构
the blue-collared shirt she was fingering was being sold by a Japanese company
1、这是宾语从句吧?
2、还原就是she was fingering the blue-collared shirt that was being sold by a Japanese company,
3、既然如此,其中that指代shirt作主语,为什么要省略呢

答案

1是定语从句
2 还原是
the blue-collared shirt that/which she was fingering was being sold by a Japanese company
3 that 做从句宾语故省略