Lesson 141 Lesson 142 Lesson 143 Lesson 144 Lesson 145 Lesson 146 Lesson 147 Lesson 148 Lesson 149 Lesson 150: Businessman (Story) Lesson 151 Lesson 152 Lesson 153 Lesson 154 Lesson 155 Lesson 156 Lesson 157 Lesson 158 Lesson 159 Lesson 160: Trip to Sanya (Story)