_x000D_ The book includes 12 lessons; each lesson contains 4 sections: two texts, exercises, and learning guidance. 4-6 studying hours for one week, the book is suitable for the second term of grade
_x000D_ The book includes 12 lessons; each lesson contains 4 sections: two texts, exercises, and learning guidance. 4-6 studying hours for one week, the book is suitable for the second term of grade