小练笔。
你准备去上海旅行，妈妈让你去火车站买票，请编写一段你与售票员之间的对话。
要求：条理清晰，语法准确，不少于50个单词。
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A: I want to buy two singleway tickets to Shanghai, please.
B: That's 58 yuan in all.
A: What time does it reach Shanghai?
B: You should be there at 11: 30.
A: How long will the journey take?
B: It takes three hours.
A: Is it necessary to change?
B: No. There's no need to change.
A: Thank you very much.
B: That's OK.
答案不唯一