The doctors did everything they-----save the---old woman but failed.A could;dead B could to;dead C could;dying D could to;dying前者为什么选could to?could后为什么加to?to 在这里的用法?

This is____【excite]match l have ever watched.l like it very much.The doctors in the children's hospital did all they could___[save]the sick baby The doctors in the children's hospital did all they could___[save]the sick baby The doctors did all they could_____(save)the boy为什么呀 ____ (cure)the cases of blindness,the doctors did as much as they could. 一道 改错题原句是这样的 The doctors did what they could save that child. Did you ever wonder how they get to the TV Mrs.Weeks was reading a newspaper report to her class.It was a report about children in the Children’s hospital.The report says,“Were you ever in a hospital when you were small?How did you feel?Doctors at the Children’s Hospital are asking for 英语阅读理解!英语达人帮帮忙!谢谢了!阅读理解!AMrs. Weeks was reading a newspaper story to her class. The story said:Were you ever in a hospital when you were small? How did you feel? The doctors in Children’s Hospital are asking That was the smartest thing I ever did 、、、ever如何翻译 Did You Ever . 英语翻译还有：the doctors believed that he might (1.ever 2.never3.soon )get well.the medicines alone won't(1.help2.predict3.come) 英语翻译问题：He was the only one of the kids that ever did that. all the things i ever did was for the only one that is you most of the doctors是什么意思? the doctors的名词所有格 did you ever see snow? 用last day用ever改写did you visited the old man last day? This is the first time we ever did something like this.是什么种类的复合句