The athlete practised strenuously in order to______on his previous record.

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问题 The athlete practised strenuously in order to______on his previous record.

选项 A、better
B、further
C、break
D、improve

答案D

解析 improve on/upon改进,超过(如:He improved on the invention.It is difficult to improve on nature.)。better vt.改善,改进,提高。further vt.促进,推进。break vt.打破。
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