阅读对话,根据横线后所给标点符号的提示,在横线上填写适当的句子,使对话完整。
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. Have you been to Dalian?
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.