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单选题 Some studies suggest parents today do have more face time with their children than the parents decades ago as driven largely by increased time spent with fathers.
A.to be driven largely
B.largely driven
C.being driven largely
D.having been largely driven
正确答案： B
答案解析: 本题重点考查过去分词短语作状语的用法。画线部分是一个as引导的原因状语从句，但是因为从句中缺少被动式结构的助动词，所以是错误的。四个选项中首先排除A和C，A中的不定式被动结构表示将来的行为，不符合本题语义。C中的副词largely修饰过去分词driven，但是它的位置应该放在过去分词前面。B和D都表不完成和被动，但是D不如B的表达简洁，而且现在分词完成式的被动结构几乎是不用的。故选B。
相关知识：一、词汇和语法
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