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 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
问题 更新时间2023/4/3 12:59:00
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