◎ 题干
The energy Jenny Bowen has devoted in the past ten years________the orphans has been considered
________of great value.
[     ]
A.to help;being  
B.to helping;to be
C.to help;to be  
D.helping;being
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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 energy Jenny Bowen has devoted in the past ten years________the orphans has been considered________of great value.[ ]A.to help;beingB.to helping;to beC.to…”主要考查了你对  【介词和介词短语】【动名词】【不定式】  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。