补全对话。请阅读下列对话，从方框内7个选项中选择5个恰当的句子完成此对话，其中有两个句子是多余的。
A: Hi, David! Come in, please.
B: 【小题1】___________________
A: I’m looking for information about London on the Internet.
I’m going to London for my holiday.
B: Aren’t you lucky! 【小题2】 ___________________.
A: No, but my mother has been there 3 times. She told me there were many places of interest there.
B: 【小题3】 _____________________________ .
A: I’m leaving at 6 a.m. on Saturday June 27.
B：Will you get there by plane ?
A: 【小题4】 _________________________ 
B: Have you ever flown in a plane?
A: No, never.
B: Then. You must be excited when you fly in a plane.
A: Really? 【小题5】 _____________________

一      will you stay in Uncle Martin’s?

一Two or three days．

A．How long      B．When                         C．How

一Will you come to the dinner party?

一I won’t come unless Jenny       ．

A．will be invited   B．can be invited       C．invited                 D．is invited