Is it your book?的肯定及否定回答

问题描述:

Is it your book?的肯定及否定回答

肯定:yes,it is.
否定:no,it isn't.

yes, it's mine.
no, it isn't.

肯定回答:Yes,it is.
否定回答:No,it isn't.
(句子开头的第一个字母一定要大写)