一道高三单选题```He did all he could to try to get the car to start
He did all he could to get the car to start,but it ___work.A
he did all he could to help the others 保持句子愿意
那个,He did all what he could to help the p
The doctor did all that he could to save the wounded boy.这句话
The doctor did all he could to save the wounded boy.这句话语法上有错
He will try to get the first place.同义句
Did he start to write the book? 或者 Has he started to write t
英语改错1.He did all what he could to help those homeless childr
he couldn't get to sleep at all.he could hardly keep his eye
the doctor did what he could to save it.为什么不是what he could d
All he did was (to help)the homeless children
He did everything he could to help the old man.=He helped th