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? his mother being ill,he had to stay at home,这里的being ill,是现在 关于“his mother being ill,he had to stay at home,looking after he being ill,i had to stay at home.与he is ill,.有什么区别? Because his mother was ill,( )he had to stay at home and loo 英语 my mother being ill ,she had to stay home to look after h ____ his being late again,he lost his job and had to stay at the day being bot,we had to stay at home His mother is ill. he ___ stay at home ___,we had to stay at home A the day being hot B being a hot There being no bus,he had to walk home.为什么用there be? Tom's mother was ill,so he (had to) stay home and look after