CONTENTS

LESSON ONE

LESSON TWO

LESSON THREE

LESSON FOUR

LESSON FIVE

LESSON SIX

LESSON SEVEN

LESSON EIGHT

LESSON NINE

LESSON TEN

LESSON ELEVEN

LESSON TWELVE

LESSON THIRTEEN

LESSON FOURTEEN

LESSON FIFTEEN

LESSON SIXTEEN

LESSON SEVENTEEN

LESSON EIGHTEEN

LESSON NINETEEN

LESSON TWENTY

LESSON TWENTY-ONE

LESSON TWENTY-TWO

LESSON TWENTY-THREE

LESSON TWENTY-FOUR

LESSON TWENTY-FIVE

APPENDIX Ⅰ English Sounds

APPENDIX Ⅱ Vocabulary

APPENDIX Ⅲ A List of Irregular Verbs