That book is new的复数句

That book is new的复数句 That is his book.怎么改为复数句 Is this a book?的复数句 here is your book.的复数句 That is an English book的复数形式 That book is hers.的同意句 英语改写句型1.Is that watch new?(肯定句)2.My book is new.(改成否定句,意思不变) 改成复数句This is a book.That isn't an egg.Is this a book?Yes,is Is that her English book?复数形式 That is an English book变成复数 whose is that book（变复数） Whose book is that?改为复数形式