AsachildAlainRobertw的精选

问题详情：完形填空       Asachild,AlainRobertwasafraidofheights.Oneday,whenhewas12,he    1   homeafterschool.Atthefrontdoorofhisbuilding,helookedforhis  2   .Hedidn'thavethem.Itwas3:...