The time he has devoted in the past ten years the disabled is now considered of great va

问题补充：

The time he has devoted in the past ten years 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

答案：

A. to help；being

(答案→)B. to helping；to be

C. to help；to be

D. helping；being

解析：考查固定结构。本题考查了两个固定结构devote… to..花时间于…;致力于…；其中的to是介词，后面要接动名词的形式。而consider…to be/as…认为…是..；在本句中是被动语态的形式。句意：在过去的十年中他花在帮助残疾人的时间，现在被认为是很有价值的。故B正确。