第24题: [单项选择]That was not the first time he ______ us. I think it's high time we ______ strong actions against him. A. betrayed...take B. had betrayed...took C. has betrayed...took D. has betrayed...take 参考答案:B 答案解析:[考点] 考查虚拟语气。 由第一个句子可知背叛发生在说话之前,因此第一个空格处应该用过去完成时;第二个句子it's high time that…从句应用虚拟语气,动词用过去时,因此选B。