◎ 题干
― Have you finished your composition already, Jack?
― Yes, I _____ it within half an hour.
[     ]
A. have finished
B. finish
C. finished
D. had finished
◎ 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“― Have you finished your composition already, Jack? ― Yes, I _____ it within half an hour. [ ]A. have finished B. finishC. finished D. had finished …”主要考查了你对  【一般过去时】  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。