情景对话，从下面方框中选出合适的选项补全对话
A: 1
B：Because I have got the first prize in the English Competition.
A: Congratulations. 2 And then we can have a party this Saturday.
B: 3 Where shall we have this party?
A: 4
B: When shall we start?
A: 5
B: Ok. See you then.
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解析：此题考查情景对话的对话规则。