A girl saw my pen drop when she was passing me .这里为什么用when?when引导的时间状语从句,主句应该用过去进行时,这里为什么用过去式呢?

同义句My pen friend is a girl (called) Mary ( )A girl _ my pen fall off the table when she _ me.A.saw,passed B.was seeing,passed C.was seeing,passed D.was seeing,was passing A girl saw my pen drop when she was passing me .这里为什么用when?when引导的时间状语从句,主句应该用过去进行时,这里为什么用过去式呢? 英语（过去进行时）1、What book ___you ___ when I ___ you at four yesterday afternoon?A.did,read,was seeing B.did,read,saw C.were,reading,saw D.were,reading,was seeing2、A girl ___ my pen fall off the tavle when she ___ me .A.saw,passed B.w A girl saw my wallt drop when she passed by.如何改为被动态? It is _____. A.pen B.my a pen C.a my pen D.my pen 8.A girl ______ my pen fall off the table when she _____ me.a.saw,passed b.was seeing,passed c.was seeing,passed d.was seeing,was passing 为什么选a不选b他不是现在进行时吗? A girl ______ my pen fall off the table when she _____ me.a.saw,passed b.was seeing,passed c.was seeing,passed d.was seeing,was passing,但我看了一些例子,还有一个选项是was,were passing哪一个对呢?知道see是瞬间动词,那么pass this is a my pen 10.The girl you saw at my house is called Jane.10.The girl you saw at my house is called Jane.A.who B.whom C.which D.what A gilr ____ my pen drop when she ____ me.A.saw,was passing B.was seeing,passedC.was seeing,passing D.was seeing,was passing the girl is my sister .you saw the girl just now 合并为一句 the girl has a pen 改否定句 Is your pen pal a boy?Is your pen pal a girl?(合成一个句子） my pen 1.This is a n__ jacket. 2.Gina's pen is black.My pen is black, t___. 3.Cindy is a girl's n___.4. I'm Alice. Glad to m__ you.5. What color is y__ ruler? You have a pen.My mom has a pen.your brother has pen.we have a pen改为一般疑问句 a pen is in my r_____ hand.