...：1.Starting this month, however, users of WhatsApp will find it harder to spread content.2.Come the holidays, they can suddenly find their schedules and budgets stretched.是因为表示时间，所以逻辑主语可以不是句子主语么？而且为什么一个用-ing一个用-ed分...
...人。为什么这句主句用过去完成时？2. I didn't manage to do it until you had explained now.直到你解释了,我才会做。为什么该句主句用一般过去时，从句用过去完成时？3. He didn't leave the office until he finished his work.他完成他的工作后才离开办...
Its eight million citizens hail from every corner of the globe, but they are united in the love of their challenging but rewarding city. 译文：它的800万市民来自全球各个角落，因为爱上这个要拼才会赢的城市而相聚在一起。
题目：You should open an account at the online bank first, after _______ you can buy anything online. Let's check it out online.答案：which我想问的是 after 能不能当做连词看，如果能，是不是可以填 that？如果不能，请老师给以指导，谢谢！
Do what you wish, but don’t do it because you’re scared. You must own your actions in life.Do what you wish /Do what you wish to /Do what you wish to do 该怎么说？
The problem is that catalysts and membranes have been expensive until recently.请问这里catalysts and membranes是最近才开始变贵，还是从以前到最近一直都是这么贵，还是说以前一直贵，但最近不贵了？还请教 until recently 是否有多种不同的用法？
...个句子：One day when entering your home, your mother says your family is having dinner with the family of one of her old friends. “when”是引导的定语从句修饰“day”？还是one day是后面这个状语从句里的，为了强调提前了？谢谢老师。