Level 1 Beginner 1 (Lessons 1 to 10)
Level 2 Beginner 2 (Lessons 61 to 70)
Level 3 Elementary 1 (Lessons 121 to 130)
Level 4 Elementary 2 (Lessons 181 to 190)
Level 5 Intermediate 1 (Lessons 241 to 250)
Level 6 Intermediate 2 (Lessons 301 to 310)
Level 7 Intermediate 3 (Lessons 361 to 370)