参考答案

正确答案：D
解析：本题考查动词搭配。break out意为“爆发”，例如：Fighting had broken out between rival groups of fans．(双方球迷发生了打斗。)；turn out“结果是；原来是”例如：He is a student in appearance，but he turns out to be a teacher．(外表上他是学生，但原来他是一名老师)；work out意为“成功地发展”，例如：Things have worked out quite well for us．(事情的结果对我们很不错。)；set out意为“出发，动身”，例如：They set out on the last stage of their journey．(他们动身踏上最后的一段行程。)根据题意，B为正确答案。