unit 7 how much are these socks ？sectionb 1a-1d.pptx

unit 7 how much are these socks ？sectionb 1a-1d.doc

number song - 123 song - counting 1 to 10 , 11 to 20, 10 to 100, 1 to 100 - lear_标清_clip.mp4

11.wav

12.wav

section b 1a.mp3

section b 1a_clip(1).mp3

section b 1a_clip(2).mp3

section b 1a_clip(3).mp3

section b 1a_clip.mp3

section b 1c.mp3

section b 1d.mp3

section b 1d1.mp3

section b 1d1_clip(1).mp3

section b 1d1_clip.mp3