填空题 Then she went back to a 1 a series of lectures which she prepared over here.
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【正确答案】 1、deliver    
【答案解析】解析: Then she went back to(重新回到) a deliver(发表) a series(系列) of lectures(演讲) which she prepared(准备) over here. 然后,她又回到1提供了一系列的讲座,她准备在这里。