The e-book, including texts, pictures, audio and videos explanation for HSK 3 Unit 7 I've known her for five years A 我认识她五年了

The e-book, including texts, pictures, audios and videos explanation for HSK 4 Unit 5 Buy the right, not the expensive B 只买对的，不买贵的

The e-book, including text, picture, audio and video explanation for HSK 1 Unit 8 drink tea 我想喝茶 A

The e-book, including text, picture, audio, video explanation for HSK 1 Unit 7 What's the date today? 今天几号 A

The e-book, including text, picture, audio and video explanation for HSK 2 Unit 8 let me think about it and tell you later A 让我想想再告诉你

The e-book, including texts, pictures, audios and videos explanation for HSK 3 Unit 12 Leave the important items with me B 把重要得东西放我这吧

The e-book, including texts, pictures, audios and video explanations for HSK 4 Lesson 11 Good to read, read good book and like reading A 读书好 读好书 好读书

The e-book, including text, picture, audio and video explanation for HSK 3 Unit 1 What’s your plan for the weekend?你周末有什么计划 B

The e-book, including text, picture, audio and video explanation for HSK 5 Lesson 2 Leaving a bunch of keys to our parents B 留串钥匙给父母

The e-book, including Text, picture, audio and video explanation for HSK 2 Unit 13 The door is open A 门开着呢