1/5 A: Unit 1-Unit 4
B: Unit 5-Unit 8
2/5 A: Unit 9-Unit 12
B: Unit 13-Unit 16
3/5 A: Unit 17-Unit 20
B: Unit 21-Unit 24
4/5 A: New Words and Expressions: Unit 1-Unit 14
B: New Words and Expressions: Unit 15-Unit 24
5/5 A: Repetition Drill: Unit 1-Unit 12
B: Repetition Drill: Unit 13-Unit 24