Whether children should be taught to complete or to cooperate 为什么有两个to?如题，名词性从句whether的用法好像常见的是 whether to do A or B但是在雅思作文中看到这个用法，为什么有两个to呢？第一次发问如有不妥老师们见谅
1 You can even shoot commercials, music videos or short films which is
great for your business.老师，which引导的定语从句谓语动词是is，是因为什么？从句主语是shoot commercials这件事吗？不是看commercials2 Then you want to add that video to your about us page, with a f...
亲爱的老师，请问这个句子中，为什么用studying而不用study, 二者都可以作名词，表示“研究”，有什么区别吗？Psychologist and behavioral scientist Nicholas Epley oversaw a key studying into self-enhancement and attractiveness.
The current base Medicare Part B premium is $121.80 per month per person, and a Medigap plan to help cover what Medicare won't can easily cost $250 per month or more,as well.为什么won't 和 can可以连用?这里是what引导的什么从句?
...，仅提供两个供参考：1.The worry over contestation arises in any situation in which we do
not have an overlapping majority about both what to do and why to do it. 2. Identify the social media to be used to reach the site's targeted
audience, and explain how and why to do so. 以上仅是我...
...e station before the train left.
4)The
bell struck thirteen times before it had stopped5)We
got to the station before the train had left.我个人认为1），2），3），4）都是正确的。但是我个人认为第5句是错误的，因为第5句有可能我们到达车站时，火车可能...
下面2013新课标I卷的一道题：The door________ open, no matter how hard she pushed.
A.shouldn’t B. couldn't C. wouldn't D. mightn't
答案是C。请问如何解释这个would的用法？为什么不能用couldn’t呢？
Russians have a deep love for their own language and carry large chunks memorized poetry in their heads.这句话主要是后半句不懂， carry large chunks memorized poetry in ...