问题 更新时间2023/4/3 12:59:00 I was giving a talk to a large group of people,the same talk I ___to half a dozen other groups before. 选择一项:A.was givingB.had givenC.am giving 答案 登录 注册 正确答案是:had given 出自:国家开放大学 >> 哈尔滨电大直属学院-人文英语