组卷网 > 高中英语综合库 > 语法 > 句法 > 特殊句式 > 省略 > 状语从句中的省略
题型:单项选择 难度:0.65 引用次数:176 题号:14289443
You should keep silent and be modest unless_________to speak.
A.permittedB.permittingC.to permitD.having permitted
21-22高二上·重庆·阶段练习 查看更多[2]
【知识点】 状语从句中的省略

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