答案是D treat sb to sth == let him have it free. treat you ___to_____ an ice cream == let you have an ice cream free of charge 你和我一起去购物的话,我请你吃冰激凌. treat sb with kindness / with equality / with openness -----强调方式方法
D 译:如果你跟我去逛街,我就买个冰激凌犒劳你。 treat sb to sth,用某物来犒劳某人。 例:You helped me a lot with my work. I'd like to treat you to a nice dinner tonight. 你帮了我个大忙 , 我想犒劳犒劳你,今晚请你好好搓一顿。