___my next day ___,I want to go swimming.A On,of B On,off C In,off D At,off

问题描述:

___my next day ___,I want to go swimming.A On,of B On,off C In,off D At,off

选B on 具体某一天 off 放假

选B.具体时间用On,day off表示休假,放假,所以选B