题干翻译：

21，它包括大概（）学生

22，本应该在一个（）乐队比赛中演奏

23，被邀请去里面的（）演奏

24，他们听到了一个（）的演讲

25，joe 会讨论一个（）跟乐队

26，joe希望乐队可以参加（）下个月

答案句：

21， they are about fifty of them all together, i’ve never work a band with twenty before

22, but they are in a regional one latter in the term,

23, town concile organising the carnival the band was asked to perform

24, a recording i came across, of a drummer talking about how playing in a band had changed his life.

25, show them that old film and talk about it with student.

26, take some of the band to a parade that’s going to take place next month.

27，横笛手