◎ 题干
When I reached the farm, my son happened _____ on the grass, ____ the hens_____ eggs.
[     ]
A. lying; watching; laying
B. to have lain; watch; laying
C. to lie; and watched; lay
D. to be lying; watching; laying
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“When I reached the farm, my son happened _____ on the grass, ____ the hens_____ eggs. [ ]A. lying; watching; laying B. to have lain; watch; laying C. to …”主要考查了你对  【现在分词】【不定式的进行式】  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。