A2 : Lesson 1C-> 1AB, 3AB, 4ABC, 5A, Interactive Speaking Practice Unit 1
B1 : Lesson 1C-> 1ABC, 2A, 3AB, Interactive Speaking Practice Unit 1
B2 : Lesson 1C-> 1ABC, 3ABC, 4A, Interactive Speaking Practice Unit 1
C1: Lesson 1C-> 1ABC, 2A, 3C, 4A, Interactive Speaking Practice Unit 1