英语单选题目,
问题描述：
英语单选题目,
The students ______ discussing,the teacher went on ______ the passage.
A.finishing --- summarizing B.having finished --- to summarize
C.to finish --- summarizing D.to have finished --- summarizing
答
楼上有些道理,确实是独立主格结构,但独立主格一般不用完成时态,因为独立主格表伴随状态,相当于WITH引导的非谓语结构．go on doing=go on with sth 做同一件事情,go on to do（停止正在做的事情）继续做另外的事情,老师先让学生讨论,然后总结.记住,独立主格不用完成时结构就行了.