________________(cure) the cases of blindness ,the doctors did as much as they could填一下并说明原因还有The doctor said he _____________any helpAneed Bneedn't C needed not D didn't need说明原因

问题描述:

________________(cure) the cases of blindness ,the doctors did as much as they could
填一下并说明原因
还有The doctor said he _____________any help
Aneed Bneedn't C needed not D didn't need
说明原因