______ darkness had again descended upon me ______ how much I had left unseen. A . When; I had realized B . Only when; did I realize C . Only when; I realized D . When; I realize
答案: B 【解析】 【详解】 考查倒装句。句意:只有当黑暗再次降临在我身上时,我才意识到我留下了多少东西没有看见。本题中 “Only+when 引导的时间状语从句 ” 置于句首时,则主句使用部分倒装,即把助动词 “did” 提到主语前面,故选 B 。