He is busy at work.能否改为he is busy working

He is busy at work.能否改为he is busy working He is busy at work.work可以加ing吗 有什么区别 Doctor Brown is always busy at work .But next month he is going to Mr.King is very busy at work.He can't take aholiday.（同义句转换） Susan's father_____home at about ten o'clock every night.he is very busy with his work My father is busy(),He()finish his work before lunch He is busy to work out the difficult problem. 改错 He is very busy for his work 改错 Peter is busy( )at school,but he never forgets( )exercise every day.A.working.doing B.Working ,to do C.at work ,doing he is always busy___ (work)是用be busy doing sth还是 be busy with sth He is at work now.同义句 He father is( )work at the moment. .look at tom's c__ how busy he is of course,maybe he is very busy at that time . Complete the passage.I have an uncle.He is a driver.He goes to work at 5:55 in the morning.Every day,he is very busy and goes home very late.He c_____ back at 12:00 at night.He likes to h_____ other bus drivers do more work.He is the first driver to He is very careful when he is-----(on,at)work is busy with her work. He is busy;he keeps9 )these days.A.workB.to work C.working D.works