These books are 是yours还是your 是Mary ’ book还是Mary ’

these books are (I),and those are (you) Are these the books you are checking out和Are these the books you are borrowing有什么区别? These are ()() my books. Are these books ( )(your)? These books are _____. Are you _____ in these _____story books.（ interesting These books to____( I ),____(you)are over there 改错：Do you think these books are made from paper These books are all a___history.Do you like them? -whose are these new books.are these[ ][you]books,millie.-no,[ ][they]aren't.用合适的代词填空 Are these books all yours? 改错：These are ours books These are the__(students)books John,are these books----(your) These are ( )(她的)books Are these students' books?对错 These books are distributed freely. These exercise -books are ( ).括号是填their还是theirs?