1/6 A: Unit 1-Unit 4: Pronunciation
B: Unit 4: Numbers-Unit 6
2/6 A: Unit 7-Unit 9
B: Unit 10-Unit 12
3/6 A: Unit 13-Unit 15
B: Unit 16-Unit 18
4/6 A: Unit 19-Unit 21: Listening
B: Unit 21: Dictation-Unit 24
5/6 A: Unit 25-Unit 27
B: Unit 28-Unit 30
6/6 A: Rhymes and Songs
B: Rhymes and Songs