This book is on the desk不加is

This book is on the desk不加is This is your book.My is on the desk. This book on the desk is quite_______（interest） this book is on the desk 句子结构分析 the book is on the desk. 1,There is on-----book on the desk Athe B a C an D╱答案D,为什么不加 is your book on the desk (陈述句) -----book on the desk is ----useful one is there a book on the desk? My book is on the desk this isn it ( ) book .my book is on the desk填空,谢 This isn't ( ) book .my book is on the desk.填空,谢