... Schrampfer Understanding and usingEnglishgrammar / Betty Schrampfer Azar- - 3rd ed.p. cm.Includes index.ISBNO-13-958661-X1. English language—Textbooks for foreign speakers. 2. English language Grammar Problems, ... to rain.Present and Past, Simple and Progressive 27 UNDERSTANDING AND USING ENGLISH GRAMMAR Third Edition AcknowledgmentsThe second edition of UUEG was thoroughly reviewed by twenty-five ... that heralds this third edition. I wish to express special acknowledgment of the contributing writers for the Understanding and UsingEnglishGrammar Workbook, Second Edition: Rachel Spack Koch,Susan...