第2题: [单项选择]Hardly ______ when the lights went out. A. the performance had begun B. had the performance begun C. the performance began D. did the performance begin 参考答案:B 答案解析:[解析] 本题考查的是句型“hardly... when...”结构的用法。hardly是否定词,位于句首时,句子的主语和谓语要部分倒装;从句的时态是一般过去时,由于主句的动作发生在从句动作之前,所以