Breadcrumb Home Online Exercises Lesson 1 Pinyin Basics Lesson 2 a o e er i u ü Lesson 3 d t n l g k h j q x Lesson 4 z c s zh ch sh r Lesson 5 Tones Lesson 6 ai ei ao ou ia ie ua uo üe Lesson 7 iao iou(iu) uai uei(ui) Lesson 8 an en in ün ian uan üan uen(un) Lesson 9 ang eng ing ong iang uang iong ueng Lesson 10 Chinese Syllables