◎ 题干
We had just covered a distance of three miles _____ the engine of the car _____.
[     ]
A. then; was broken
B. when; broke down
C. until; was failed
D. since; burst out
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“We had just covered a distance of three miles _____the engineof the car _____.[ ]A. then; was broken B. when; broke downC. until; was failed D. since; b…”主要考查了你对  【从属连词】【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。