14.I ____ along the street looking for a place o park when the accident ____ .A. went ; was happening B. went ; happened C. was going ; had happened D. was going ; happened答案：解析：

14.I ____ along the street looking for a place o park when the accident ____ .A. went ; was happening B. went ; happened C. was going ; had happened D. was going ; happened答案：解析：
14.I ____ along the street looking for a place o park when the accident ____ .
A. went ; was happening B. went ; happened C. was going ; had happened D. was going ; happened
答案：
解析：

14.I ____ along the street looking for a place o park when the accident ____ .A. went ; was happening B. went ; happened C. was going ; had happened D. was going ; happened答案：解析：
D
解析:when引导时间状语从句 表示两个动作同时发生,一般一个是延续性,一个是短暂性.延续性的要用进行时态,短暂的用一般时态.在这句中沿着街找停车的地方是一个延续性动词,事故发生是一个短暂性动词 所以D

C
looking说明用进行时
过去的过去用过去完成时

D 翻译意思： 当事故发生时，我正走在大街上，寻找某个地方
解析见：：一楼 quotation000 回答的很对。
这句话学多了就会用了，关键培养语感。
多读，多看就会了