如题所述
be busy doing sth侧重于动作 sth 是名词哦· do是动词的形式
be busy with sth 侧重于状态
意思都一样，可以互换。
He is busy doing homework.=
He is busy with homework.
【俊狼猎英】 团队为您解答，欢迎追问
be busy with sth 侧重于状态
意思都一样，可以互换。
He is busy doing homework.=
He is busy with homework.
【俊狼猎英】 团队为您解答，欢迎追问
温馨提示：答案为网友推荐，仅供参考
第1个回答 2012-06-21
如果接名词代词用前者， 如果要用动词，表示忙于做什么 用后者
【希望帮助到你，若有疑问，可以追问~~~
祝你学习进步，更上一层楼！(*^__^*)】
【希望帮助到你，若有疑问，可以追问~~~
祝你学习进步，更上一层楼！(*^__^*)】
第2个回答 2012-06-21
be busy with sth ，with后面加事情 忙于某事
He is busy with his homework
be busy doing sth ，从doing 就开始加动词进行式 忙着做......
He is busy doing his homework
He is busy with his homework
be busy doing sth ，从doing 就开始加动词进行式 忙着做......
He is busy doing his homework
