王老师:19139051760(拨打)复制微信 题目 更新时间:2023/4/3 I was giving a talk to a large group of people, the same talk I ______ to half a dozen other groups beforeA. was givingB. am giving C. had given D. have given 答案 登录 注册 C 出自:麦能网 >> 河南大学大学英语 河南大学继续教育学院