my father was very busy with his work last week.he went to Wuhan on ( )

问题描述:

my father was very busy with his work last week.he went to Wuhan on ( )

填business
on business的意思是“出差”not only he but also his brother treats others nicely改为同义句
()he and his brother () treats others nicely你确定treats前面有一个空吗?