2级

单选题I knew nothing of the motives behind his recent move, and I don't know either the person to put him up to the action.

参考答案:A进入在线模考
固定搭配及结构应用表示“也不……”,可用not do…either,或nor do sb.do…;因前面用的是过去时,所以本句应用nor did I know the person who…因此A为答案。