he's going to stay at home____two days.为什么不能用about只能用for?如题

he's going to stay at home____two days.为什么不能用about只能用for?如题 He is going to stay at home ____ two days.A.at B.on C.about 为什么不能用Where is he going to? he is going to stay at home ( )about a week为什么不用on而用for?请讲明原 l want to stay here for another three mouth.为什么不能用other he is going to stay at home for the weekend we are going to stay at my mother's for the weekend中stay at it's hard (to find) a job,为什么不能用to look for/to find out 用介词填空,每词只能用一次 on at for without to of as with between about 为什么只能用lenrn about animal 不能用learn from animal意思上可以啊 It's ____(good) for you to stay at home on rainy days He going to stay（） home （）two days