This book goes with Standard Chinese. It is an important part of this series. The purpose is to provide more exercises for students on the basis of the exercises on textbooks. So it can help students review Chinese pinyin, new characters, words, basic sentences, and contents related to texts. Considering that there are differences in function and nature between exercises on textbooks and on exercise book, most listening parts, speaking practices and interactive games are put into exercises on textbooks. The purpose of an exercise book is to review and consolidate basic knowledge.