About this Book 1
About the TOEFL？ 3
Diagnostic Te st 4
Unit 1 Nouns 7
Unit 2 Verbs 21
Unit 3 Infinitives and Gerunds 41
Quiz 1 Units 1-3 53
Unit 4 Clauses and Sentences 54
Unit 5 Conjunctions 64
Unit 6 Adverb Clauses 76
Quiz 2 Units 4-6 89
Unit 7 Adjective Clauses 90
Unit 8 Noun Clauses 106
Unit 9 Conditional Sentences 115
Quiz 3 Units 7-9 128
Unit 10 Singular and Plural 129
Unit 11 Articles 139
Unit 12 Subject-Verb Agreement 148
Unit 13 Pronoun Agreement 160
Quiz 4 Units 10-13 175
Unit 14 Comparison 176
Unit 15 Prepositions 187
Unit 16 Word Order 198
Unit 17 Parallel Structure 210
Quiz 5 Units 14-17 218
Unit 18 Word Form 219
Unit 19 Common Word Errors 228
Unit 20 Punctuation 237
Quiz 6 Units 18-20 248
Review Test 249
Answer Key 252
Audio Scripts 275
Index 285
How to Score Speaking 296
How to Score Writing 298
Score Charts 300