◎ 题干
_______,I lost heart in English learning,but my teacher often said to me,"Keep on working hard; you'll
succeed________."
[      ]
A. At a time; in time  
B. At a time; on time
C. At one time; in time  
D. At one time; on time
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“_______,I lost heart in English learning,but my teacher often said to me,"Keep on working hard; you'll succeed________."[ ]A. At a time; in timeB. At a t…”主要考查了你对  【介词和介词短语】  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。