11. Although air raid drills ceased, the underground hospital remained in use for less urgent purposes. 12. Monday morning, an air raid drill was held for the few dozen residents left here. 13. The 200 people remaining in the Chu islands conducted air raid drills Monday, officials said. 14. Air raid drills in school, when the kids and teachers lined up in the halls.15. During the 1940s and 1950s, cities such as Detroit would practise blackout air raid drills . 16. The 200 civilians remaining on the Chu Islands conducted an air raid drill Monday, officials said. 17. Instead of bomb shelters and air raid drills , we stigmatize anybody with a pack of Salems. 18. Sirens wailed during air raid drills to test preparations for a possible air attack by India. 19. Her class practiced air raid drills and prayed daily for those who had died at Pearl Harbor. 20. Owen Knott of Norris Point, Nfld ., heard sirens sounding so Breza residents could practice air raid drills .
