用适当的词或句子补全对话。

A: Hi, Amy! I haven't seen you for a long time.?

B. Hi, Tony! I have been to Hainan island.

A: That sounds wonderful! ?

B. I went there by plane. It's very far from here.

A: Oh, I see. ?

B: I went there with my parents.

A: ?

B: Oh. It's very beautiful. We had a good time there..

A: Not yet. I'm going there this summer vacation.

B: I hope you will have a good trip.