◎ 题干
根据句意,用括号内所给动词的正确形式填空。
1. They _______ (chat) online when Amy came up the stairs.
2. When I got home, I found my pet dog _______ (lie) on the floor, dead.
3. —I'm sorry I forgot _______ (post) your letter on my way home. 
    —That's OK. I will do it myself this afternoon.
4. She tells her son to have his hair _______ (cut) every other month.
5. Yesterday, she ________ (make) to finish all the work in a short time by his boss.
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“根据句意,用括号内所给动词的正确形式填空。1. They _______ (chat) online when Amy came up the stairs. 2. When I got home, I found my pet dog _______ (lie) on t…”主要考查了你对  【被动语态】【不定式】【分词】【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。