-Can you describe__it happened?-Yes,I was walking on the str

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-Can you describe__it happened?-Yes,I was walking on the street__I saw a car knocked an old lady
down from behind.A.when;as B.how;as C.how;when D.how;while

选C~
再问：求详解谢谢!
再答：首先，从答语能看出他问的并不是事发时间，而是事发过程（怎么发生的），所以第一个得是how，排除A。然后，看C&D，when和while同为“当···时”，但是，while后面加的必须是正在进行时，而这里后头加的是过去时，所以排除D。关于B，as在作为“当···时”的意思时，强调“随着···”，不适用于这里，所以选C 求采纳~

It happened when I was walking on the road this morning.中whe I happened ____(see) the accident when i was walking past th I was walking on the street one day. 单项选择题 Can you ski on the snow? A.Yes.I think I ca Have you looked ( )the questions on the blackboard Yes,I can I was walking on the street和I walked on the street 的区别 A ball hit me on the head ( ) i was walking on the street. A Can you tut on your coat?Yes I an What can you do?I can put 43.I saw the accident _________ when I was walking on the ro can you wait ____ the bus station -----yes,i can . Can you speak ( ) now ----Yes.I can understand the teachers 英语翻译That evening,I think I was drunk,walking alone on the wa