[部优] Lesson 19 Let’s Go to the Park!_第一课时
[部优] Lesson 19 The Spring Festival_第一课时
[部优] Lesson 8 What Can They Do_第一课时
[部优] Lesson 10 Seasons and Weather_第一课时
[部优] Lesson 9 Where Do They Live_第一课时
[部优] Lesson 5 In the Living Room
[部优] Lesson 18 Little Zeke Sends an Email
[部优] Lesson 10 What Do They Eat_第一课时
[部优] Lesson 16 An Email Is Fast_第一课时
[部优] Lesson 15 Sending the Postcards_第一课时
[部优] Lesson 13 Let’s Buy Postcards!_第一课时