having finished his term paper before the deadline,it was delivered to the professor ...
问题描述：
having finished his term paper before the deadline,it was delivered to the professor ...
having finished his term paper before the deadline,it was delivered to the professor before the class.
这句哪里错了,为什么,
答
having finished his term paper before the deadline,he delivered it to the professor before the class.截至前他完成学期论文,上课前交给教授.
“主语好像不一致了吧”楼下正解