◎ 题干
---How long have you ________ your penfriend?
---For five days. I received it last Sunday.
A.heard fromB.received the letter fromC.heard ofD.had the letter from
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“---How long have you ________ your penfriend?---For five days. I received it last Sunday.A.heard fromB.received the letter fromC.heard ofD.had the letter from…”主要考查了你对  【实义动词的单数第三人称形式】【实义动词】【动词短语】  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。