完成对话，通读下面的对话，根据上下文补全对话内容。（共5小题，计10分）
A: Hello, Betty. What did you do last summer vacation?
B: I visited my uncle.
A:                ?
B: He lives in Dalian, a beautiful city.
A:                 ?
B: I stayed there for a week.               ?
A: No, I haven’t. But I’m going to spend a holiday there.
B: You’d better go to Dalian in summer. So you can enjoy swimming in the sea. 
A:            . I will go there this summer vacation.
B:            ?
A: By plane.