◎ 题干
—You were out when I dropped in at your house yesterday.
—Oh, I________ for a friend from Beijing at the railway station.
A.was waitingB.had waitedC.am waitingD.have waited
◎ 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“—You were out when I dropped in at your house yesterday.—Oh, I________ for a friend from Beijing at the railway station.A.was waitingB.had waitedC.am waitingD.…”主要考查了你对  【一般现在时】【将来进行时】【过去完成进行时】【过去将来时的被动语态】  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。