CONTENTS 1
Lesson One 1
Lesson Two 26
Lesson Three 50
Lesson Four 76
Lesson Five 99
Lesson Six 123
Lesson Seven 146
Revision Exercises(Lessons 1—7) 165
Lesson Eight 172
Lesson Nine 195
Lesson Ten 221
Lesson Eleven 243
Lesson Twelve 265
Revision Exercises(Lessons 8—12) 289
Appendixes: 298
APPENDIX Ⅰ Table of Tenses 298
APPENDIX Ⅱ Irregular Verbs 299
APPENDIX Ⅲ The Fraction,Decimal,Percentage and Multiple 300
APPENDIX Ⅳ Vocabulary 303