a closed book an open book on the books black book

a closed book an open book on the books black book an open book THE BLACK BOOK怎么样 i'm a closed book a closed book的意思 There is a book on the desk,and ____is an English book A.tha ( )useful book a/an an useful book还是a usefull book? He fell asleep with a book laying open on his There is not a book on the shelf.和 There aren't any books on a book on.. note on a book