While we boys were working hard in the garden,our sisters were enjoying themselves in the house.这里的 while后面的we 是怎么回事?它和 后面的boys 什么关系?怎么能两个代词在连一起写?还是有什么说法?

英语翻译while we boys were working hard in the garden.out sisters were enjoying themselves in the sitting room. They were singing while we were dancing. While we boys were working hard in the garden,our sisters were enjoying themselves in the house.这里的 while后面的we 是怎么回事?它和 后面的boys 什么关系?怎么能两个代词在连一起写?还是有什么说法? The boys were singing while the girls were dancing last night.为什么用were singing.不能用sang吗? They were singing while we were dancing这句话可以用while吗 The boys was making a noise while the were sleeping last morning.（此句两处错） while we were walking yesterday afternoon.the bell rang. We were very close friends for a while,but … We were shouting while the performers (march) across the park. when we were watching it和while we were watching it哪个对,为什么? While we were having tea请问这里的While能说成Just Were were the boys( )那时 We left our neighbour in charge of our children while we were away句型转换We left our children_____ ______ ______of our neighbour while we were away. They were singing while we were dancing.怎么读,我想知道它们的发音 While the boys were discussing the fatal___,Ben put in that the road was icy.A.accidentB.incidentC.residentD.dentist we were having a party when the train started 用while 改为同义句while we ---- ---- a party ,the train ---- We found some boys in the room.They were playing chess.(合并为一个句子） While the other boys and girls were playing on teh playground,she alone remained in the classroom reading.请问这里为什么不能用as,而用While呢?