Lesson 15-the riddle of time I. Warm-up Questions Answer 4 It's an automatic watch but its owner has remained inactive for so long that it has stopped working W BTL E To be continued on the next pageLesson 15—The Riddle of Time W B T L E To be continued on the next page. It’s an automatic watch, but its owner has remained inactive for so long that it has stopped working. Answer 4: I. Warm-up Questions