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题目内容
（东华大学大学英语4）
119. I was giving a talk to a large group of people，the same talk I ___to half a dozen other groups before. 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。
B.was giving
C.am giving
D.had given
E.have given
B.was giving
C.am giving
D.had given
E.have given
参考答案