at work和 be busy with sth造句

at work和 be busy with sth造句 my parents __(be not) busy at work today be busy at do吗 为什么课本上是I am busy at work every day. be busy at和别的介词的区别老师说有be busy at. be busy with和be busy at 的区别快,急 I think you must be busy at work,and your homework.Care for your health是什么意思. work on与be busy with be busy with study还是be busy at study be busy with与be busy at的区别是什么? busy 和busy at 有区别吗 land on .land at区别?还有：be busy doing 和.be busy to do sth的不同? 办公室里的人都在忙于工作People in the office ____ all ____ _____ work.are busy at但是词组不是be busy with么? be busy with和 work on有什么区别?用法都是什么, at work ,be work doing 区别 be busy doing 和 be busy in doing 的区别? be busy with和be busy for的区别 be busy with sth 和 be busy dong he is always busy___ (work)是用be busy doing sth还是 be busy with sth 英语翻译1.be afraid of 2.agree to do sth.3.not…at all 4.one after another 5.at last 6.at once 7.at the same time 8.at work 9.be away from 10.go away 11.make the bed 12.do one’s best 13.be busy with 14.be busy doing sth 15.by bus /car / plane