来自冯富强的问题
【strigglinghiswayinthedarkforawholenight,hefinallyfoundhimself__intheforestA.lostB.havingbeenlostB项错在哪】
strigglinghiswayinthedarkforawholenight,hefinallyfoundhimself__intheforest
A.lostB.havingbeenlost
B项错在哪

