◎ 题干
It is wise of you to          well-trained workers          untrained ones in the assembly line.
[     ]
A.substitute;for
B.substitute;with
C.replace;by
D.replace;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“It is wise of you towell-trained workers untrained ones in the assembly line. [ ]A.substitute;forB.substitute;with C.replace;byD.replace;with …”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。