1.1 exercise 1 en exercise 3, 4 en Exam Exercise
1.2 exercise 1,3,4 en 5. exercise 2 en Extra Grammar 13.
1.3 exercise 1, 4 & Exam Exercise + exercise 2, Grammar 14 en Extra Grammar 14.
2.1 exerxcise 1,2, 3 + Grammar 16 en Extra Grammar 16 + Exam Exercise