分析子成分 The doctor did his best to do what he could to help th

the doctor did what he could to save it.为什么不是what he could d He did everything he could to help the old man.=He helped th What did the doctor do to you The doctor did his best to s_____ the patient The doctor did what he could （to save）the child. The doctor did what he could to save the girl who was hurt b during his journey,nick did what he could to help others the doctor did what he could ____the dying man 为什么里面要加to sav The doctor said he could do nothing to help him.动词不定时做什么句子成分 The policeman did what he could ____the poor man.(help/to he 那个,He did all what he could to help the p 同义句转换he did his best to help the people in trouble he__ __ _