题目

I was giving a talk to a large group of people,the same talk I           to half a dozen other groups. A.was giving             B.am giving            C.had given          D.have given   答案: C   考查时态的用法。因前一句的时态是过去时,而我给其他六个组做报告发生在给许多人做报告之前,故用过去完成时态。  
英语 试题推荐