Halloween may be children's time in the West ,bu here it is party time ____for___young people,like__teenagers__Halloween may be children's time in the West ,bu here it is party time _______young people,like____________Christmas.A.for;at B.to;at C.to;on D.for;onD.for;onfor sb.on + 节日用on 的话应该是on Christmas Day/Eveon christmas在圣诞节；在圣诞那天.也可以的那为什么不用at呢？在圣诞节期间哦，我错了……应该是at