.On Sunday he denied all knowledge of it,but on the --day he

previous: adjective [attrib.]existing or occurring before in time or order以前的,先前的
she looked tired after her exertions of the previous evening.
前一天晚上劳累后,她显得很疲劳.
tickets will be sold on the same basis as in previous years.
票将以前几年相同的原则出售.
former:of or occurring in the past or an earlier period 以前的,从前的,早先的
previous指时间上、顺序上较早的,或指正在谈论的某事的前一个.former系latter的反义词