单句改错：My mother is often busy to clean the rooms.先来的对的给分
问题描述：
单句改错：My mother is often busy to clean the rooms.先来的对的给分
要有责任心点,别害我啊
答
My mother is often busy in cleaning the rooms.
be busy in doing something.固定搭配 意思是忙于干某事
或者在often 后面加too.
意思变了,意思是 我妈妈经常太忙而顾不上打扫房间.