◎ 题干
The manager ____ nothing about the matter ____ he read his secretary’s report.
A.had known, whenB.has known, beforeC.will know, afterD.knew, until
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“The manager ____ nothing about the matter ____ he read his secretary’s report.A.had known, whenB.has known, beforeC.will know, afterD.knew, until…”主要考查了你对  【一般现在时】【过去进行时】【过去完成进行时】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。