第20题: [单项选择]The reporters exposed the corruption of several senior officers in the government ; consequently, these officers ______ to resign from office. A. have asked B. were asked C. had asked D. had been asked 参考答案:B 答案解析:[试题分析] 此题为时态及语态题。 [详细解答] 使用主动语态的选项应先排除,使用过去完成时态则将时间先后顺序颠倒了,故只有B项与句中的时态、语态相符。