一道关于从句的选择题

题目

一道关于从句的选择题
after the earthquake,the problem the local government solved was ____ of providing accommodation for the homeless.
A that B which C what Dthis
这是什么从句?应该是表语从句吧?但that做什么成分呢?不是说that在表从不充当成分的吗?____ of providing accommodation for the homeless.好像缺主语啊?
还是不太明白 也就是这里的that 不是引导词，__ of providing accommodation for the homeless.不是从句？

答案

从你的提问可以看出你是一个非常认真的学生,而且有较好的英语分析能力,非常好!
的确这是一个典型的表语从句.the problem(the local government solved括号里的是省略了that的定语从句)was that ...
The problem is when we can get a pay rise.
问题是什么时候我们可以得到加薪.
主语+ 连系动词+ 一个句子作表语---表语从句
of providing accommodation for the homeless相当于作that的同位语补充.
句子缩后成the problem was that.怎么的呢?“of providing accommodation for the homeless”,这句话是短语,而不是句子.