They were singing while we were dancing.和He came while I was having shower.这两个句子都是时间状语从句.为什么第一个的主句用过去进行时第二个则用一般过去式.

They were singing while we were dancing. they were singing a moment ago对singing进行提问 They were singing whenwe were dancing可以用when They were singing while we were dancing.怎么读,我想知道它们的发音 They were singing while we were dancing这句话可以用while吗 They were singing and dancing happy in the hall.改为感叹句 They were waving and singing when she went home的问句是什么 They were watchng and singing when she went home的问句是什么? Parde?_________________?they were marching across the park while they were dancing and singing,exercise h__ make our body healthy and stong 第一句是“It being in the springtime and the small birds they were singing ”的歌曲是什么? 英译中 The birds were singing yesterday We were singing,Happy birthday to you... they are singing English songs.为什么用singing They are singing in the classroom.对are singing 提问 转换:The children came into the room.They were singing and langhing.The children ____ into the room ____ _____ _____. The singing group made a ( )of Europe and they were well received in Germany.A.travelB.journeyC.tourD.trip这四个词意思相近但有什么区别? 英语作文时态First we saw three giant elephants.On the tree,there are many birds.They were yellow and red,they are beautiful.They are singing happily.为什么They were yellow and red用过去时,而they are beautiful又不用呢?还有They are 英语翻译Does they like singing?对么?