when did the accident happen?_____a winter morningA:in 

when did the accident happen?_____a winter morningA:in  when did the accident happen When did the car accident happen?(同义句） when did the accident happen?怎麼回答? --How did the accident happen? When () the accident ()?A.was,happen B.did;happen C.is;happe Did you see the accident happen when did the ____ happen?A.interview B.accident c.flight 听短文，回答问题。 1. When did the accident happen? A. Last Monday. -When did the murder happen? —When did the terrible earthquake in Japan happen? — When did the terrible earthquake in Japan happen?