◎ 题干
The world’s population is getting larger and larger, so scientists are trying to ______ new ways to solve the food shortage.
A.keep up withB.come up with
C.make up withD.catch up with
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“The world’s population is getting larger and larger, so scientists are trying to ______ new ways to solve the food shortage.A.keep up withB.come up withC.make …”主要考查了你对  【实义动词的单数第三人称形式】【实义动词】【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。