PREFACE TO THE SECOND EDITION
ACKNOWLEDGMENTS
Chapter 1 PRESENT TIME
1-1 THE SIMPLE PRESENT AND THE PRESENT PROGRESSIVE
1-2 FORMS OF THE SIMPLE PRESENT AND THE PRESENT
PROGRESSIVE
1-3 SPELLING: FINAL -S vs. -ES.
1-4 NONPROGRESSIVE VERBS
1-5 SIMPLE PRESENT AND ...... 更多