— Do you think it wise for Chinese mothers to try to do everything for their children?— No

问题补充：

— Do you think it wise for Chinese mothers to try to do everything for their children?

— No, that’s they are mistaken.

A. where

B. when

C. so

D. how

答案：

(答案→)A. where

B. when

C. so

D. how

解析： 考察表语从句。句意：—你认为中国的妈妈给孩子做一切的事情是明智的吗？—不，那正是她们错误的地方。本句中的where they are mistaken是一个表语从句，与前面的系动词is构成系表结构。在句中where作地点状语。根据句意说明A正确。