分类：教育/科学-外语学习
问题：英语题Iwasgivingatalktoalargegroupo 
I was giving a talk to a large group of ople ,the same talk I (  )to half a dozen other groups.A.was giving  B.are giving  C.had given  D.have given
回答：I was giving a talk to a large group of people ,the same talk I (C )to half a dozen other groups. 
A.was giving B.are giving C.had given 
D.have given
was giving:谓语，为过去式，the same talk I had given to half a dozen other groups.对上一句talk的解释，发生在I was giving a talk to a large group of people前