◎ 题干
-- I called you this morning, but nobody answered.
-- Sorry. I ________ the flowers in the garden.
A.am wateringB.was wateringC.water D.watered
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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 called you this morning, but nobody answered.-- Sorry. I ________ the flowers in the garden.A.am wateringB.was wateringC.water D.watered…”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。