in a few years' time or in a few year's time答:ago, in1980, in October, just now等,皆为具体的时间状语。 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 years, always等,皆不确定的时间状语。 共同的时间状语:this morning, tonight, this April, now, already, recently, lately 等。 3...