i walking in the street 与i am walking in the street有什么区别

i walking in the street 与i am walking in the street有什么区别 walking in the street I happended______my teacher when I was walking in the street he is walking down the street和he is walking in the street有什么 I________ see him when I was walking in the street. I was walking in the street _____someone called Walking in the dark street makes one *** they were walking in the street ___ While I was walking down the street,I saw a cat in the tree 求这篇英语阅读的原文I was in Tokyo last spring,walking in the street w I was walking on the street和I walked on the street 的区别 I was walking in the street yesterday ( )I met with our foot