Practical Mandarin/ Chinese Reading: Simplified Characters: Volume 1: HSK 1-2 - Willyam Wen - Black Orb Publishing - Chapter 6

Practical Mandarin/ Chinese Reading: Simplified Characters: Volume 1: HSK 1-2 - Willyam Wen - Black Orb Publishing - Chapter 6 - Exercise 1 - 这是不是你们家的照片？

Practical Mandarin/ Chinese Reading: Simplified Characters: Volume 1: HSK 1-2 - Willyam Wen - Black Orb Publishing - Chapter 6 - Exercise 2 - 语言学院大不大？

Practical Mandarin/ Chinese Reading: Simplified Characters: Volume 1: HSK 1-2 - Willyam Wen - Black Orb Publishing - Chapter 6 - Exercise 3 - 丁力波是学生