◎ 题干
This summer holiday I did an English course which ________ for four weeks.          
[     ]
A. lasts
B. lasted
C. was lasted  
D. were lasted
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“This summer holiday I did an English course which ________ for four weeks. [ ]A. lastsB. lasted C. was lasted D. were lasted…”主要考查了你对  【系动词】  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。