2019年6月大学英语六级作文连词：表示时间顺序

　　now, at present, recently,

　　after, afterwards, after that, after a while, in a few days,

　　at first, in the beginning, to begin with,

　　later, next, finally,

　　immediately, soon, suddenly, all of a sudden, at that moment, as soon as, the moment

　　form now on, from then on,

　　at the same time, meanwhile,

　　till, not…until, before, after, when, while, as during