I happened ____(see) the accident when i was walking past th

I happened ____(see) the accident when i was walking past th i was very ____(surprise) when i was the accident I________ see him when I was walking in the street. 43.I saw the accident _________ when I was walking on the ro I ( ) here to see you when the accident happened. A.came B.h when the accident happened,i was just at the s____ at the mo I saw her __ into the library when I was walking past when I was walking past the window,I saw him__my Ireally got 非谓语动词练习题When I was walking past the window,I noticed Wang Fe When I was walking past the office,I heard some students____ i was looking in a shop window when the accident happened怎么翻 扩号部分提问：When the accident happened,I was shopping