[ti:UNIT 1 School and Friends Lesson 8: Unit Review] [00:01.65]UNIT 1 第一单元 [00:03.23]School and Friends 学校和朋友 [00:07.05]Lesson 8: 第8课: [00:08.75]Unit Review 单元复习 [00:11.67]Ⅲ. [00:13.08]Listening and Speaking 听一听,...