---Youshouldhavethankedherbeforeyouleft.---Imeant________,butwhenIw

发布时间：2020-08-06 20:23:09

--- You should have thanked her before you left.--- I meant ________ , but when I was leaving I couldn't find her anywhere.A.to doB.toC.doingD.doing it

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B解析考查不定式的省略。省略to后相同的部分，应保留不定式符号。
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