Lesson 12 A Visit to the Great Wall.pptx
U02_L12_1.swf
U2L10201.mp3
U2L10202.mp3
U2L10203.mp3
U2L10204.mp3
U2L10205.mp3
U2L10206.mp3
U2L10207.mp3
U2L10208.mp3
U2L10209.mp3
U2L10210.mp3
U2L10211.mp3
U2L10212.mp3
U2L10213.mp3
U2L10214.mp3
U2L10215.mp3
U2L10216.mp3
U2L10217.mp3
U2L12.mp3