Lesson One The Simple Present and the Present Continuous

Lesson Two The Past Indefinite and the Past Continuous

Lesson Three The Present Perfect and the Present Perfect Continuous (Ⅰ)

Lesson Four The Present Perfect and the Present Perfect Continuous (Ⅱ)

Lesson Five The Past Perfect and the Past Indefinite

Lesson Six Ways of Expressing Future Time

Lesson Seven The Passive Voice

Lesson Eight The Infinitive

Lesson Nine The Participle

Lesson Ten The Gerund

Lesson Eleven The Indirect Speech

Lesson Twelve The Subjunctive Mood

Key to Exercises