[al:新概念英语(第1册)第7课(听力强化·中美)] [ti:Are You a Teacher?-你是教师吗?] [ar:© 2011 露珠英语工作室] [by:http://weibo.com/DewEnglishStudio] [00:00.00]No, I'm not. [00:01.00]不,我不是。