◎ 题干
---Why didn’t you go shopping with me two hours ago?
---Because my mother________ me outside.
A.waited forB.is waiting for
C.was waiting forD.has waited for
◎ 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“---Why didn’t you go shopping with me two hours ago?---Because my mother________ me outside.A.waited forB.is waiting forC.was waiting forD.has waited for…”主要考查了你对  【一般现在时】【过去进行时】【过去完成进行时】  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。