问题
选择题
From mother’s love, patience and understanding, I have learned what a huge responsibility______ is to raise a child.
A．it
B．which
C．that
D．this
答案
答案：A
题目分析：考查指示代词。what a huge responsibility______ is to raise a child是what引导的宾语从句，作learned的宾语，宾语从句是一个感叹句的句式，正常句式应该是：it is a huge responsibility to raise a child。故选A。