英语从句连词as soon as , because, before, if, so, so that, until...答:时间状语从句(1)常用的连词有when, while, before, after, until(till),since, as soon as等。 (2)时间状语从句中一般不用将来时,若谈论将来的事情,往往用一般现在时代替, 如:I’ll go on with the work when I come back tomorrow./As soon as he finishes the work, he will come ...
before 什么时候用在一般过去式什么时候用在现在完成时答:现在完成时的时间状语: for, since, so far, ever, never, just, yet, till/ until, up to now, in past/last years, always等不确定的时间状语。 共同的时间状语: this morning, tonight, this April, now, ever, before, already, recently, lately等。现在完成时表示持续到现在的动作或...