Is it your book?复数句

Is it your book?复数句 Is this your book ? 变为复数句 here is your book.的复数句 Is it your ruler?改为复数句 Is it teacher's book?变为复数句 Is that your parent? Yes it is改为复数句 把Is it your salad?改为复数句 That is my parent 改为复数句 Are those your grandparents 作肯定回答 This is her friend 变为否定句That is your book 改为复数句 将下列各句改成复数This is a picture.That is a photo.She is a lovely girl.Is it your dress?No,it is not.There is an old book on the shelf It is an English book.（复数） it is her book复数形式 改为复数；WHOSE BOOK IS IT it is your book对your提问 This is a book 改为复数句 Is this a book?的复数句 That book is new的复数句 here is the book改成复数句 her watch is in the pencil case.改为一般疑问句 it is in the drawer.改为复数句your keys are under the book.改为单数句where is my computer game?完成答语sorry,