Using extraposition:That his son always liked to have his own wa

Using extraposition:
That his son always liked to have his own way made him disappointed.
【正确答案】：It made him disappointed that his son always liked to have his own way.
【题目解析】：It做形式主语，真正的主语在句末，后移的结果就是满足了尾末重心的原则，达到强调的效果。