[解析]
It's Tuesday today.How many classes do you have today?(今天是星期二。你今天有多少节课?)排第一,回答多少节课,I have seven classes.(我有七节课。)排第二;继续问,Do you have English today?(你周三有英语吗?)排第三;回答有没有,No.But we have it on Wednesdays.What do you have on Wednesdays?(不。但我们周三有。你周三有什么?)排第四;回答周三有什么课程,We have music and Chinese.(我们有音乐和语文。)排第五;Great!I love Chinese.(太好了!我爱语文。)排第六。
故答案为:(2)→(6)→(3)→(5)→(1)→(4)。