—Is this your book, Alice?  —Yes, it is ____ book. Thank you.

 –Is this your book?   –Yes, ___________.

A. this is        B. it is         C. it isn’t      D. he is

 —Is this your book, Alice?  —Yes, it is ____ book. Thank you.

A．mine             B．I                 C．me              D．my

— Is this your book, Alice?

— Yes, it is _________ book.

A. my               B. hers            C. his

---________,is this your book?

        A. Sorry           B.Excuse me     C. Thank you