[al:新概念英语(第1册)第115课(跟读听写·美)] [ti:Knock, Knock!-敲敲门! [ar:© 2011 露珠英语工作室] [by:http://weibo.com/DewEnglishStudio] [00:00.00]Look! Everyone's in the garden.-瞧!大家都在花园里。