a book on..
a book on..
note on a book
Your book a------on that desk.
i have a book on the desk
clapped a book on the desk.
is there a book on the desk?
a book on the table 没有is
_____ a book on the desk.
this is a book on ________(electronic)
A book on the desk.改病句
I do have a book on
A book is on the desk和On the desk is a book