大学英语四级单项模拟精解 完型填空与简答PDF电子书下载

Unit One 1

Keys 1

Unit Two 10

Keys 11

Unit Three 19

Keys 20

Unit Four 29

Keys 30

Unit Five 38

Keys 39

Unit Six 46

Keys 47

Unit Seven 56

Keys 57

Unit Eight 67

Keys 68

Unit Nine 80

Keys 81

Unit Ten 93

Keys 94

Unit Eleven 104

Keys 105

Unit Twelve 114

Keys 115

Unit Thirteen 123

Keys 125

Unit Fourteen 134

Keys 135

Unit Fifteen 146

Keys 148

Unit Sixteen 157

Keys 158

Unit Seventeen 166

Keys 167

Unit Eighteen 175

Keys 176

Unit Nineteen 183

Keys 185

Unit Twenty 193

Keys 194

Unit Twenty-One 199

Keys 200

Unit Twenty-Two 206

Keys 207

Unit Twenty-Three 214

Keys 215

Unit Twenty-Four 223

Keys 224

Unit Twenty-Five 231

Keys 232

Unit Twenty-Six 239

Keys 240