When I saw the picture,I couldn't help thinking of my hometown为什么用 thinking

When I got on the bus,I saw that _________ The farmers ______(pick) apples when I saw them. A:when did you see Jack?B:I saw him when I ( ) off the train (get) they were talking to their teacher.I saw the students.（用when连接两个句子）--------I saw the students--------------. I saw my friend when I walked in the street 和 I saw my friend when I was walking in the street 分别是什么时态.有什么区别. I saw my friend when I (walk)in the street.(现在完成时)用适当的形式填空I saw my friend when I (walk)in the street.(现在完成时) 43.I saw the accident _________ when I was walking on the road this morning . I got a terrible什么when I saw the mouse in the kitchen I saw her play when I was I saw the Queen Elizabeth when I was in London.那里错了? I saw a dag in the road when I was driving to london错那 i always remember what she ——【do】when i saw her for the first time I saw a dog in the road when i was driving to London改错 When I saw that ,I walked over to the group.的翻译? When i got there,I saw some boys __on the playground.这里为什么填playing呢? I saw an old man _____(lie) on the around when I walked past .I,around,an,man,when,was,down,fall,walking,the,saw,station,I,old When I looked out of the window,I saw a man coning towards me.