第一章 难度等级 1
Clozing Test 1 1
Clozing Test 2 10
Clozing Test 3 19
Clozing Test 4 29
Clozing Test 5 38
第二章 难度等级 47
Clozing Test 1 47
Clozing Test 2 57
Clozing Test 3 66
Clozing Test 4 75
Clozing Test 5 84
第三章 难度等级 93
Clozing Test 1 93
Clozing Test 2 103
Clozing Test 3 112
Clozing Test 4 121
Clozing Test 5 130
第四章 难度等级 140
Clozing Test 1 140
Clozing Test 2 149
Clozing Test 3 159
Clozing Test 4 168
Clozing Test 5 179
第五章 难度等级 187
Clozing Test 1 187
Clozing Test 2 196
Clozing Test 3 204
Clozing Test 4 214
Clozing Test 5 223
参考答案 230