English - Grammar - Verb Tenses - Past continuous tense - Past Continuous vs Simple Past

Work through 5 scenarios: (1) 'I ___ (walk) to school when it ___ (start) to rain.' → 'I was walking (long action) when it started (interruption).' (2) 'While they ___ (play), the ball ___ (break) the window.' → 'While they were playing, the ball broke the window.' Show the timeline for each: the co