解释一下下面这句话的句式结构

问题描述:

解释一下下面这句话的句式结构
it was when we,the indigenous people,were first given the vote and we were allowed to be counted in the census.

所给句子似乎有问题?改一个词,就会正确——it was when we,the indigenous people,were first given the vote 【that】 we were allowed to be counted in the census.句子结构和成分划分:【it 形式成分,构成固定句...