◎ 题干
Learning that their only son was sound and safe _____ the family ______.     
[     ]
A. put; at ease    
B. made; easy    
C. set; easily  
D. laid; at ease
◎ 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“Learning that their only son was sound and safe _____ the family ______. [ ]A. put; at ease B. made; easyC. set; easily D. laid; at ease …”主要考查了你对  【介词和介词短语】【动词】  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。