PART ONE TEXTS AND EXERCISES 1
Lesson 1 1
Lesson 2 7
Lesson 3 12
Lesson 4 17
Lesson 5 21
Lesson 6 26
Lesson 7 31
Lesson 8 36
Lesson 9 41
Lesson 10 47
Lesson 11 53
Lesson 12 58
Lesson 13 64
Lesson 14 69
Lesson 15 74
Lesson 16 79
Lesson 17 84
Lesson 18 89
Lesson 19 94
Lesson 20 100
Lesson 21 105
Lesson 22 110
Lesson 23 116
Lesson 24 122
Lesson 25 127
Lesson 26 132
Lesson 27 137
Lesson 28 142
Lesson 29 147
Lesson 30 151
Lesson 31 156
Lesson 32 161
Lesson 33 166
Lesson 34 172
Lesson 35 177
Lesson 36 183
Lesson 37 189
Lesson 38 195
Lesson 39 200
Lesson 40 207
Lesson 41 214
Lesson 42 224
Lesson 43 232
Lesson 44 238
Lesson 45 244
Lesson 46 251
Lesson 47 257
Lesson 48 263
Lesson 49 270
Lesson 50 275
PART TWO SAMPLE TESTS 281
Test Ⅰ 281
Test Ⅱ 285
TestⅢ 289
TestⅣ 292
Test Ⅴ 295
Key To Sample Tests 298