用that,which,who,whos,whom引导宾语从句造句及其翻译,快,

He told me that he had told Mary about the meeting already.
他告诉我他已经把有关会议的事情告诉的了Mary.
I don't know which one to use.
我不知道用哪一个。
She doesn't konw who he is.她不知道他是谁。
He want to find whose pen this is.他想找到这是谁的钢笔。
She is the girl whom i want to see.她是我想见的那个女孩。（定语从句）

He is sure that he can do better.他确信他能够做的更好.
She can't remember which seat is hers.她记不得哪一个是她的座位了.
I don't know who you are.我不知道你是谁.
The teacher wants to know whose shirt it is.老师想知道这是谁的衬衣.
whom是引导定语从句的.
OK?希望能帮到你啊!