Do you know whose book this is 请问句子成分?

问题描述:

Do you know whose book this is 请问句子成分?
请问 know 是系动词吗?
whose book this is 是什么从句?

不是 know 是谓语动词
whose book this is 是宾语从句
系动词一般是be,become,turn,get 等 若是系动词出现,后面跟的则是表语从句.