◎ 题干
---Susan, why are you still here? They are all ready to start.
---I’m sorry, but I _________ when to start.
A.wasn’t toldB.don’t tell
C.didn’t tellD.haven’t told
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“---Susan, why are you still here? They are all ready to start.---I’m sorry, but I _________ when to start.A.wasn’t toldB.don’t tellC.didn’t tellD.haven’t…”主要考查了你对  【实义动词的单数第三人称形式】【实义动词】【动词短语】  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。