1. As long as one group (prepare) dinner, the others (collect) wood for their campfire. 12. While the parents (have) breakfast, their children (run) about. 13. Martha (turn) off the lights and (go) to bed. 14. When I (do) the washing-up, I (break) a plate. 15. While Tom (play) the piano, his mother (do) the washing-up. 16. He (drink) some juice and then he (eat) a few chips. 17. I (have) dinner when I suddenly (hear) a loud bang. 18. When my father (work) in the garden, an old friend (pass) by to see him. 19. She (go) to school, (take) out her textbook and (begin) to learn. 20. When it (start) to rain, our dog (want) to come inside. past simple , post continuous . Cho iêm hỏi bài ẹ :>