◎ 题干
David apologized for ______ to inform me of the change in the plan.
A.his being not able        B.him not to be able
C.his not being able        D.him to he not able
◎ 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“David apologized for ______ to inform me of the change in the plan.A.his being not ableB.him not to be ableC.his not being ableD.him to he not able…”主要考查了你对  【现在分词的被动式】【现在分词】【不定式的被动式】【过去分词】  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。