问题补充：
The time Dr. Wang has devoted the disabled in the past five years is now consideredof great value.
A. helping; being
B. helps; to be
C. to helping; to be
D. to helping; being
答案：
A. helping; being
B. helps; to be
(答案→)C. to helping; to be
D. to helping; being
解析：考查固定搭配。题目的主句是The time is now consideredof great value.，Dr. Wang has devoted the disabled in the past five years是定语从句，省略了which/that，句意：王医生在过去的五年时间里花在残疾人身上的时间，在现在看来是很有意义的。devote one’s time to doing sth把时间投入到做某事中；consider... to be sth认为......怎么样。故选C。
