英语句子成分划分Luckily the 1989 earthquake didn't happen in the cen

英语翻译Luckily the 1989 earthquake did not happen in the centre Luckily,the boy didn't hurt his( )in the accident ,so he can Luckily,he didn't hurt badly in the accident（改错） why did the earthquake happen? The earthquake ____(happen) in Yushu on April 14,2010 —When did the terrible earthquake in Japan happen? — When did the terrible earthquake in Japan happen? 划分句子成分(let)(the fresh air )(in). 英语：I didn't hand in the ... 英语句子成分划分He didn't come.That is why he didn't know What you when the earthquake happen When did the earthquake of Wenchuan happen