改错：This is all what they did.

改错：This is all what they did. What is this. 改错 英语改错1）The doctors did all what they could to save the soldie This is what they What did they do this morning 改错 :What are this?They're pinapples. 高中英语单句改错1.All what he said is ture.2.They work in a factory This is what they 急用! what is this use English.改错 What's color is this?.改错 英语改错题,1 What row is he,do you know?2 They all are good drive What is this?----This is a pencil sharpener改错