◎ 题干
— John called' you yesterday but you didn't answer the phone.
— Oh, I ________ flowers in the garden at that time.

[     ]

A. watered
B. am watering
C. was watering
D. have 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“— John called' you yesterday but you didn't answer the phone. — Oh, I ________ flowers in the garden at that time. [ ]A. watered B. am watering C. was wat…”主要考查了你对  【过去进行时】  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。