◎ 题干

—I rang you at about nine, but there was no reply.
—Oh, that was probably       I was seeing the doctor.
A.whyB.whenC.whatD.that
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—I rang you at about nine, but there was no reply.—Oh, that was probably I was seeing the doctor.A.whyB.whenC.whatD.that…”主要考查了你对  【状语从句】【限制性定语从句】【主语从句】【同位语从句】  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。