Unit 9 This bird is bigger than fist one Part A-C.pptx
动画阅读:A_New_Bike.swf
U9Asay.swf
U9Cact.swf
big.wav
bigger.wav
longer.wav
tall.wav
taller.wav
biggest.wav
long.wav
longest.wav
short.wav
shorter.wav
shortest.wav
small.wav
smaller.wav
smallest.wav
tallest.wav
U9A.mp3
U9B.mp3
U9C.mp3