◎ 题干
The time he has devoted ________ the disabled is now 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 time he has devoted ________ the disabled is now considered ________ of great value . [ ]A. to help; beingB. to helping; to be C. to help; to beD. he…”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。