◎ 题干
—What a hard problem!
—Maybe Bob will _____ with a good solution to it.

[     ]

A. come up
B. make up
C. catch up
D. use up
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“—What a hard problem! —Maybe Bob will _____ with a good solution to it.[ ]A. come up B. make up C. catch up D. use up …”主要考查了你对  【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。