问题
选择题
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
答案
答案：B
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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
答案：B