file:KET官方词汇表.pdf file:KET、PET常用英语固定搭配词组汇总.pdf file:音轨 9.mp3 file:Cambridge KET Extra Book.pdf file:听力原文 cambridge-english-key-for-schools-sample-paper-1-listening-tapescript v2.pdf file:KET 口语考试视频 part_2.flv file:听力样卷.pdf