一个高一的英语单选
问题描述：
一个高一的英语单选
____ a proper partner,so he had to operate the mine by himself.
A He hadn't found B Because of not finding
C Not having found D As he didn't find
为什么不选C和其他呢?
希望详细说说
答
因为有so,所以这里应该是两个句子,而不是从句
because后面是不可以跟but,用了as,也不需要用到so了,因为as已经引出原因,不用再这样重复了
如果将句子改成：____ a proper partner,he had to operate the mine by himself.
就可以选择c了