this your book改复数,单复数句型各变疑问句.she is my mother.变疑问句,否定回答 t

题目

this your book改复数,单复数句型各变疑问句.she is my mother.变疑问句,否定回答 t
those are my toys变问句,变单数句子.单数变疑问句
these are his rules变问句.变单数.单数变疑问句

答案

These are your books.
Is this your book?
Are these your book?
Is she your mother?No,she isn't.
Are those your toys?
That is my toy.
Is that your toy?
Are these his rulers?
This is his ruler.
Is this his ruler?