B,devote to doing 所以选to helping
be considered to be 意思是被认为是.
the time he has devoted in the past ten years ___the disabled is now considered ___of great value.
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 help .to be ,D helping ,being
A to help ,being B to helping ,to be C help .to be ,D helping ,being
英语人气：430 ℃时间：2020-05-01 03:57:41
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