a book on..

a book on.. is there a book on the desk? I do have a book on this is a book on ________(electronic) A book on the desk.改病句 a book on the table 没有is note on a booknote on a book怎么理解 a closed book an open book on the books black book 要有权威性的, A book was written on the subject.He has written a book on this subject.时态? A book is on the desk和On the desk is a book是否一样? i have a book on the desk改同义句-------a book on the desk A history book is on the desk.改为同义句--- ---- a book-----history on the desk There is a pen on the book?把on the book 划横线,变换句型. I can see a book on the desk,a clock（）the book and a pen（）the book There( ) a pen and a book on the tabie . There is a book on the table.对画线部分(is)提问提问is a book What's on the table?回答 是It's a book.还是There's a book. C.a new book for me D.on me a new book