When did the word come from?的翻译

When did the word come from?的翻译 when did the accident happen when did the dinosaurs live? When did the children come? world not word when did you ever in my world Ask a question ( )the word:when. When did the earthquake of Wenchuan happen when did the world war break out? When did the accident ( ) ( ) (发生）?填空 when did you take the medicine last when did the Iraqi War break out ? When did they arrive ( ) the airport 翻译 When did the last dinosaurs live? when did you arrive.the museum? When did you_______( 到达)at the airport. when did the Shaghai World Expo begin? when did the play put on when did the story take place?为什么要用did