where is my book?和is my book in the desk?有何区别

where is my book?和is my book in the desk?有何区别 oh!where is my book?It is ___ on the desk ____ in the bag. My book is in my bag on the desk 翻译 Here is my book.和This is my book.有何区别 Where is my book? My book is on the desk where is my book ? It is in the sofa. My dictionary is on the desk [ ] My book is in the bookcase This is your book.My is on the desk. Where is my English book? My book is on the desk.（同意句转换） My math book is on the desk.改成一般疑问句