ContentS 1
Exercise 1 1
Exercise 2 9
Exercise 3 17
Exercise 4 25
Exercise 5 33
Exercise 6 42
Exercise 7 50
Exercise 8 58
Exercise 9 66
Exercise 10 74
Exercise 11 82
Exercise 12 90
Exercise 13 98
Exercise 14 106
Exercise 15 114
Tapescripts and Key 122