The fastest and easiest way is to model the style of someone in person, on the phone, and by email.
in person, on the phone, and by email.这几组介词是做什么状语,表达什么意思?
《高考英语备考1号·速效编》
《高考英语备考1号·写作编》
《高中英语晨读晚记》
《高中英语错题笔记》
《零起点考大学英语》