【英语】耐心好心的People,come in 3

题目

【英语】耐心好心的People,come in 3
Finshed their work,they wrote a paper about this work.
这里Finshed 过去分词省主语
化为 They finshed their work,they wrote a paper about this work.
这样子对吗?
对的话Finshed 过去分词在这里做什么语啊?
化为As they finshed their work,they wrote a paper about this work
做原因状语不行吗？

答案

不对
After they had finshed their work,they wrote a paper about this work
两个独立的句子不能用逗号隔开,应该用连词连接.
两个分句之间是先后关系,前一个分句应该用完成时.