“忙”用英语怎么说

1.I'm up to my neck in work，工作堆到脖子了；2.I've got my hands full, 两手都占着呢；3.I have a lot on my plate，盘子里堆得满满的。
4.I've got a million things to do!哎呀！ 我得赶紧走人了.
5. in the middle of 正在做……