So what were you doing when the UFO (到达)?

what were you doing when the UFO arrived? what were you doing when the ufo arrived 作文 unit 3 what were you doing when the ufo arrived? 1.What were you doing when the UFO a_________?I was in the b 初二英语Unlt3 What were you doing when the UFO arrived 1b的翻译 2 Unit3 What were you doing when the UFO arrived? 的答案 What were you doing when the UFO arrived?是个什么时态的什么句子? What were you doing when the UFO arrived?是个什么从句? 人教八下Unit 3 What were you doing when the UFO arrived?原文 What were you doing when the UFO arrived?和I was walking down What were they doing when the UFO l_____? 用括号里的时间状语改写下列句子 what were you doing when the UFO arrived?(at