Don't go to work for at least five days为什么这里用for又用at?

Don't go to work for at least five days为什么这里用for又用at? Jane has gone to beijing for at least five days.(用how long对划 go straight at five minutes,at为什么改为for? people ___ go to theater at those days.是用didn't 还是don't? 英语翻译Say,I don't have to be at work for another hour.Would yo 英语翻译Take a break for at least 6 hours,and don’t sweat over n going to wenchuan for volunteer work,or at least im planning According to the art dealer the picture __to go for at least There days I find ____hard for me to go to sleep at night. These days I found _____ hard for me to go to sleep at night even ( for / of / to / at ) work place I don't like work __evenings and weekends.A.for B.at C.in D.