I was doing some shopping ____ I saw my old friends yesterday afternoon (when/while/as)

I was doing some cleaning.(对doing some cleaning做划线提问) I was doing some cleaning.(对doing some cleaning做划线提问) I was doing some shopping ____ I saw my old friends yesterday afternoon (when/while/as) While mother _______ some washing,I _____ a kite for Kate.a.did,made b.was doing,made c.was doing,was making d.did,was making 说明 I was doing some shopping ______the earthquake started that afternoon.填when 还是while Yesterday afternoon,when Liu Jun got home after school,he wanted to do some housework.While hewas sweeping the floor,his father came back and (1) him doing it.Later when he was (2) TV,his mother came up and turned (3)________ the TV and said,You sho I___ some shopping with my mother when I ran into Linda.为什么要填did,而不填was doing. while I was doing可省略I was吗 i,was,just,now,doing,homework 填空：The girl was doing some washing ,------a song. He was doing some washing at eight yesterday morning. sb was doing sth at some的意思 英语题2道要原因1.He received a toy panda on his____(five)birthday2.I was doing some shopping when the building_____(start)to shake hard. I was doing some exercises down on the floor when she walked in.请特别说明一下DOWN在这里的用法, 英语翻译2.I was doing some housework when suddenly the door bell rang.3.The harder we work,the happier we are.急 I( ) some shopping with my mother （ ) I ran into Linda.A.did,while B.did,when C.was doing,while D.was doing,while 为什么选B,D为什么不正确啊,买东西不是一个过程吗?选项有误D.was doing,when do some cooking在否定句中的用法?do some cooking 在否定句中 some 变any么?Q:-Lucy was doing some cooking when I got there.(改为否定句）-Lucy wasn't doing _____ cooking when I got there.为什么? I singing someone doing heard my honework while was I