补全对话（共5小题，每小题2分，满分10分）
A:Hi,Ann.What are you going to do this weekend?
B: _______________________.
A:A concert?Who will sing at the concert？
B:Swift Taylor. _________________?
A:Sure,I’d love to.She is my favorite singer___________________?
B:Eighty yuan.
A:Oh,it’s too dear.I’m afraid __________________________
B:We don’t have so much money,either.We plan to sell flowers to raise money.
A: ______________.Can I join you?
B:No problem.Shall we meet at the gate of the park at four oclock ?
A:Ok,See you then.
根据语境，用恰当的语言完成对话。