Nowadays, many parents are trying to either prevent thei Wap版

试题详情及答案解析

Nowadays, many parents are trying to either prevent their children from failure, or protect them from the knowledge ______ they have failed.

A．when

B．where

C．what

D．that

答案：D

试题分析：考查名词性从句。that引导同位语从句，具体说明knowledge的内容是they have failed。句意：如今，许多家长们正努力不让他们的孩子遭受失败，或是正保护孩子们，不让他们知道他们自己已经失败。故D正确。
考点：考查名词性从句