part 1: does your flight leave; part 2: are you doing; part 3: have you known; part 4: are they always making; part 5: Has Stella been cooking; part 6: do you go; part 7: Has Roy ever been; part 8: do Robert and Kelly live; part 9: Is the climate changing; part 10: does light travel; part 11: Have you drunk; part 12: Has anybody ever talked; part 13: are you staying; part 14: have you been waiting; part 15: Are they organising