这句话的句子成分是什么? A young man and a young woman were s

问题描述:

这句话的句子成分是什么? A young man and a young woman were s
这句话的句子成分是什么?
A young man and a young woman were sitting behind me

主语a young man and a young woman谓语were sitting
状语behind me你好,麻烦问一下,这个句子的成分是什么,This is a private conversation。非常感谢新概念2 第一课的吧?
主语This
系动词is
定语private
表语conversation
系动词+表语=复合谓语是的。很感谢