搜题
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. had given
B. was giving
C. am giving

译文:我给一个大团体进行讲座,同样的讲座之前我给其他一些团体讲过。 正确答案是:had given
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