his mother being ill,he had to stay at home 为什么用being?

his mother being ill,he had to stay at home 为什么用being? 关于“his mother being ill,he had to stay at home,looking after her”his mother being ill,he had to stay at home,looking after her这个句子中,为什么用being ill 不用was ill或者is being ill呢?还有,looking after her与主语是什么 His mother was b____ ill last night his mother was ____ (bad) ill yesterday, Mike is ill.His mother feels__(worry) Little Tim was ill.His mother insisted ______A on his sending to bed B on him to be sent to bedC on his being sent to bed D his being send to bed Little Tim was ill.His mother insisted ______A on his sending to bed B on him to be sent to bedC on his being sent to bed D his being send to bed 着急 独立主格 BEING 省略我知道独立主格中的BEING（HAVING BEEN) 可以省略.但是为什么HIS MOTHER BEING ILL,HE WAS ANXIOUS.中的BEING不能省略呢?不可以说是HIS MOTHER ILL,HE WAS ANXIOUS.我知道有两种不能省略,一 改错：His mother is ill,he has to look after her at home.这个句子怎么看怎么对啊,为什么要把is改成being? His mother is ill.He has to look after his mother.(改为同义句)His mother is ill.He has to( )( )( )his mother. 英语翻译Jack ___ his mother ___ ___ ill. His mother was s____?__ ill last night.怎么填 His mother was s( ）ill last night .急 His mother is_____(worry),because he is ill .理由 His mother is ill heavily,please s___for a doctor qiuckly. 英语 His mother’____ (ill) made him sad.帮个忙, 1、 to his mother,he looked after her day and night when she was ill.1、_____ to his mother,he looked after her day and night when she was ill.A：Devoted B：Devoting C：To devoted D：Being devoted ```````His mother is ill.He has to go to the hospital to _____ ______his mother.