【题目】It is fantastic for children to have a harmonious family,the parents treat their child like a friend.
A.why
B.that
C.which
D.where

【答案】D
【解析】【分析句意：孩子们有一个和睦的家庭，父母把孩子当朋友对待，这是非常棒的。where引导定语从句修饰family，在从句中作地点状语。故选D。