Unit One 1
Part One 1
Part Two 7
Part Three 8
Unit Two 11
Part One 11
Part Two 14
Part Three 18
Unit Three 19
Part One 19
Part Two 22
Part Three 25
Unit Four 27
Part One 27
Part Two 30
Part Three 32
Unit Five 34
Part One 34
Part Two 38
Part Three 40
Unit Six 43
Part One 43
Part Two 45
Part Three 47
Unit Seven 50
Part One 50
Part Two 53
Part Three 55
Unit Eight 57
Part One 57
Part Two 61
Part Three 63
Unit Nine 66
Part one 66
Part Two 69
Part Three 71
Unit Ten 73
Part One 73
Part Two 76
Part Three 78
Unit Eleven 81
Part One 81
Part Two 84
Part Three 86
Unit Twelve 88
Part One 88
Part Two 92
Part Three 94
Unit Thirteen 96
Part One 96
Part Two 99
Part Three 101
Unit Fourteen 103
Part One 103
Part Two 107
Part Three 108
Unit Fifteen 110
Part One 110
Part Two 113
Part three 115
Unit Sixteen 117
Part One 117
Part two 120
Part Three 121
Unit Seventeen 124
Part One 124
Part Two 126
Part Three 129
Unit Eighteen 130
Part One 130
Part Two 134
Part Three 136
Tapescripts & Answers 139