完成对话Mary:Hello,Jack.Is this your dictionary?Jack:No,it______

完成对话
Mary:Hello,Jack.Is this your dictionary?
Jack:No,it______________________.
Mary:__________________ dictionary is it?
Jack:Maybe it's Bob's.
Mary:Hello,Bob.Is it_____________?
Bob:Yes,it is.
Mary:Can I use______________?
Bob:Of course.Here______________________are.