Lesson One The Simple Present and the Present Continuous 1
Lesson Two The Past Indefinite and the Past Continuous 12
Lesson Three The Present Perfect and the Present Perfect Continuous (Ⅰ) 23
Lesson Four The Present Perfect and the Present Perfect Continuous (Ⅱ) 32
Lesson Five The Past Perfect and the Past Indefinite 44
Lesson Six Ways of Expressing Future Time 55
Lesson Seven The Passive Voice 71
Lesson Eight The Infinitive 86
Lesson Nine The Participle 98
Lesson Ten The Gerund 112
Lesson Eleven The Indirect Speech 132
Lesson Twelve The Subjunctive Mood 155
Key to Exercises 179