Failure is the mother of success. ______your courage. A．Keepup B．Keepoff C．Keepon D．Keepaway
2023-02-01 15:10:57 40次 2010届三轮回扣语法专项训练（动词和动词短语） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Failure is the mother of success. ______your courage.
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A．Keepup
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B．Keepoff
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C．Keepon
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D．Keepaway
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