whenever和其他引导时间状语从句的词有什么区别?答:表示时间的状语从句可以由when, whenever, as, while, before, after, until, till, since, ever since, now (that), once, so/as long as, as soon as…引起。 I will give you the information as soon as I get it. Once you start to smoke, it is hard to give it up. Let's stay here...