Respostas – Exercícios das Lições 20 lessons Lessons Answer Keys – Lessons 1 to 4 Answer Keys – Lessons 6 to 9 Answer Keys – Lessons 10 – 13 Answer Keys – Lessons 14 to 17 Answer Keys – Lessons 18 – 21 Answer Keys – Lessons 21 to 24 Answer Keys – Lessons 25 to 28 Answer Keys – Lessons 29 to 32 Answer Keys – Lessons 33 to 36 Answer Keys – Lessons 37 to 40 Answer Keys – Lessons 41 to 43 Answer Keys – Lessons 44 to 47 Answer Keys – Lessons 48 to 51 Answer Keys – Lessons 52 to 54 Answer Keys – Lessons 55 to 58 Answer Keys – Lesson 59 to 62 Answer Keys – Lessons 63 to 66 Answer Keys – Lessons 67 to 69 Answer Keys – Lessons 70 to 72 Answer Keys – Lessons 73 to 76
