The children hid themselves in the places---couldnot be found选项A.thatB.whereC.in whichD.in that

问题描述:

The children hid themselves in the places---couldnot be found选项A.thatB.whereC.in whichD.in that
这种关系副词和关系代词还有介词加关代的定语从句总是选不好,还望大家帮忙哈

选A.that
B.where=D.in that排除这两项
句子中已经有in the places所以不会再出现in,C排除