There had been a party 怎么改成一般疑问句和特殊疑问句 、

问题描述:

There had been a party 怎么改成一般疑问句和特殊疑问句 、
一般疑问句要肯定否定回答

Had there been a party?
Yes,there had./No,there hadn't
特殊疑问句:What had there been?