◎ 题干
So fast ________ that I could not catch up with them.
[     ]
A. did they run
B. they had run
C. they ran
D. had they run
◎ 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“So fast ________ that I could not catch up with them. [ ]A. did they runB. they had runC. they ranD. had they run …”主要考查了你对  【一般过去时】【部分倒装】  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。