免费课:Unit 1 My School Part A
2 Unit 1 My School Part B and C
4 Unit 2 What time is it Part A
5 Unit 2 What time is it Part B and C
免费课:Unit 3 Weather Part A
11 Unit 4 At the farm Part B and C
14Unit 5 My clothes Part B and C
16 Unit 6 Shopping Part B and C
20 Unit 5 My clothes Part B and C