... tree when it began to rain.
Present and Past, Simple and Progressive 27
UNDERSTANDING
AND USING
ENGLISH
GRAMMAR
Third Edition
Acknowledgments
The second edition of UUEG was thoroughly reviewed ... the
swallow that heralds this third edition.
I wish to express special acknowledgment of the contributing writers for the
Understanding andUsingEnglishGrammar Workbook, Second Edition: Rachel Spack ... Schrampfer
Understanding andusingEnglishgrammar / Betty Schrampfer Azar
- - 3rd ed.
p. cm.
Includes index.
ISBNO-13-958661-X
1.
English
language—Textbooks
for foreign speakers. 2. English
language Grammar Problems,
...