Mum is at work.I have to b_ my sister at home.b_填什么?

Mum is at work.I have to b_ my sister at home.b_填什么? My sister is ill.I have to take good care of her at home.改为同 My sister is too young.I have to ____ her at home His work is to make b_ chairs. I can't go with you because I have to b_ my mother. I have to look after my sister at home.这句话有语法错误吗? I'm at home with my sister.改同义句MY sister is ___ ___with me Yesterday I ____(be) not at home.I _____(go) to my mum’s hom I have to____(wash) my clothes at home taday横线上填什么 Mum is ill in bed and Dad has to l______ after her at home.填 Mum,I shall not have lunch at home today. My mum is ill.i must look ______ her at home today