you should stay ( )bed ( )a few days.
问题描述：
you should stay ( )bed ( )a few days.
问题的选项有 1,atin 2,withfor 3,infor 4,aton
答
You should stay (in) bed (for) a few days.
你要在床上休息几天.
stay in bed,待在床上.for用于一段时间之前.选择C项正确.