Chapter 1, Lesson 1 – Exercise 1/2 Chapter 1, Lesson 1 – Exercise 3B Chapter 1, Lesson 1 – Exercise 4A Chapter 1, Lesson 1 – Exercise 5A Chapter 1, Lesson 1 – Exercise 5B Chapter 1, Lesson 1 – Exercise 6 Chapter 1, Lesson 1 – Exercise 7A Chapter 1, Lesson 1 – Exercise 7C