The time he has devoted in the past years the disabled is now considered of great value.

问题补充：

The time he has devoted in the past years the disabled is now considered of great value.

A. to help; being

B. to helping; to be

C. to help; to be

D. to helping; being

答案：

A. to help; being

(答案→)B. to helping; to be

C. to help; to be

D. to helping; being

解析：考查固定词组。第一空是固定词组devote some time to sth/doing sth；致力于做某事；to是介词，后面接动名词；第二空是consider sb to be/as…认为sb是…；这个结构的被动语态。句意：在过去的十年里他花在帮助残疾人身上的时间被认为是很值得的。故B正确。