B1 revision past continuous (introduction)

We usually use the past continuous with words, like when, or as or while. So we often say, while she was coming home, a friend greeted her in the street. Or, as she was coming home, a friend greeted her in the street, or when she was coming home, a friend greeted her in the street. My NEW book: "B1 English Vocabulary Builder - 22 Short Stories for Learning the Words and Phrases Students Need to Pass the B1 Exam" is now available! This book gives the learner enough vocabulary to pass any B1 ex...