Bài 1: Animal Friends - L2U1. Grammar 01Bài 4: Animal Friends - L2U1. Vocabulary03Bài 7: Fun in Class - L2U2. Vocabylary01Bài 10: Fun in Class - L2U2. Vocabulary03Bài 13: Boots and Bathing Suits - L2U3. Vocabylary01Bài 2: Animal Friends - L2U1. Grammar01Bài 5: Animal Friends - L2U1. Grammar02Bài 8: Fun in Class - L2U2. Grammar01Bài 11: Fun in Class - L2U2. Grammar02Bài 14: Boots and Bathing Suits - L2U3. Grammar01Bài 3: Animal Friends - L2U1. Vocabulary02Bài 6: Animal Friends - L2U1. StoryBài 9: Fun in Class - L2U2. Vocabulary02Bài 12: Fun in Class - L2U2. StoryBài 15: Boots and Bathing Suits - L2U3. Vocabulary02Bài 16: Boots and Bathing Suits – L2U3. Vocabulary03Bài 17: Boots and Bathing Suits – L2U3. Grammar02Bài 18: Boots and Bathing Suits – L2U3. StoryBài 19: Fun in the sun – L2U4. Vocabylary01Bài 20: Fun in the sun – L2U4. Grammar01Bài 21: Fun in the sun – L2U4. Vocabulary02Bài 22: Fun in the sun – L2U4. Vocabulary03Bài 23: Fun in the sun – L2U4. Grammar02Bài 24: Fun in the sun – L2U4. StoryBài 25: Inside Our House – L2U5. Vocabylary01Bài 26: Inside Our House – L2U5. Grammar01Bài 27: Inside Our House – L2U5. Vocabulary02Bài 28: Inside Our House – L2U5. Vocabulary03Bài 29: Inside Our House – L2U5. Grammar02Bài 30: Inside Our House – L2U5. Story