Lesson 2UNIT ONE WHY ARE YOU SO HAPPY?Because my dog is missing.Don’t be sad. He will come back soon.Why do you look so sad, Maomao?I hope so.My dog is back, Lingling. Oh, great! Are you happy now?Yes, I’m happy and surprised!watch and sayhappyangrytiredsadsurprisedexcitedSamJaneThank You
