把下列句子排成一段完整的对话.A.What's the matter,Lily?B.What are you think

把下列句子排成一段完整的对话.A.What's the matter,Lily?B.What are you thinking about?C.It's a secret,Ann.D.But now it's not a surprise.E.Tell me,pleaseF.Nothing.I'm thinking.G.Ok.I'm going to make you a surprise cake on your birthday.I want to give you a surprise.正确的顺序:( ) ( )( )( )( )( )( )注：不仅要写答案,而且还要把每句话的意思写下来.