◎ 题干
_______, I lost heart in English learning, but my teacher often said to me, "Keep on working hard and
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 andyou'll succeed ".[ ]A. At a time, in timeB. At a time,…”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。