根据对话内容及方框中所给的句子补全对话。有一项是多余选项。
Nick: Mum!
Mum: ___________
Nick: Is my computer game on the table?
Mum: No, it isn’t．It’s on the bookcase.
Nick : Oh．___________ Are they on the bookcase, too?
Mum: ____________ They are on the chair．
Nick: Where is my pencil case?
Mum: ___________
Nick : OK．And where are my keys?
Mum: __________
Nick: Oh, yes．Thanks, Mum.