(三) 短文篇-Lesson 1
14:46(二) 句子篇-Lesson 1
07:02(一) 发音篇-Lesson 2-元音[e]和[]
04:56Lesson 19 Same old song and dance
03:10Lesson 17 Quiet as a mouse
03:32Lesson 18 Rain on one's parade
04:05Lesson 16 Pass the buck
04:22Lesson 14 Necessity is the mother of invention
04:20Lesson 15 Off the top of one's head
04:14Lesson 13 Keep a straight face
03:35