题目内容：

This is my pencil case.改为一般疑问句
Is that her book?做肯定回答
That is her jacket.改为否定句
Is it her key?改为肯定句
This is a pencil in English.对划线句子提问 划线地方是a pencil

优质解答

Is this your pencil case?
Yes,it is.
That isn't her jacket.
It is her key.
What is this in English?