英语过去进行时问题I (telephone) a frien when Bob (come) in.请问怎么写?为什么

英语过去进行时问题I (telephone) a frien when Bob (come) in.请问怎么写?为什么 帮我改下语法`感谢.1.I was 后面怎么写啊?_____ (telephone) a friend when Bob 英语过去式when,while和过去进行时、过去式怎么搭配出句子,为什么 when怎么与过去进行时连用 怎么区别when+过去进行时还是过去时? I was about to leave when the telephone rang.为什么ring不用现在进行式 when we were having the party,i met him.为什么要过去进行时 英语(过去进行时）1、When I ___ (see) them this morning ,they ___ (cle 英语划分句子成分1.i don't think differences are important in a frien 关于英语过去进行时的问题 三道英语不定式题目1.He happened____(telephone)when I went in.2.The gi 改错：When I come in,Xiaoming was flying a kite.