...一句例句很困惑。If aspirins will cure it, I'll take a couple tonight.(如果阿莫西林有效的话,我就今晚就吃2片)我把他理解为表预测的will。但是zero conditonal又定义为"Zero conditional" refers to conditional sentences that express a factual impl...
In England tea didn't appear until 1660, but in less 100 years he had become the national drink. 这里用了过去完成时had become, 过去完成时是过去的过去,这里had become是在强调发生在哪个过去动作之前的?谢谢,盼着专家老师解惑。