Singapore has a land reclamation project that builds up additional land from the sea floor.这句话从that充当成分来说是定语从句，但是感觉意义上that的引导的句子是对project的解释说明。那么到底是什么从句呢?
Once the sands have run out of a person's hourglass, they cannot be replaced. 1. sand 作沙子时是不可数名词，但是这句的意思是沙子从沙漏计时器中跑走了，怎么用了-s复数形式。我看算了网上有的说法是强调一粒粒沙子，是这样么?2. sands ...
After the first man landed on the moon in 1969 , The scientists thought hotels would ___on the moon by the year 2000
请问这里应该填什么？
a, Would have been built
b, Would be built
这里后边儿用了by ，是不是更应该用，过去将来完成时。
Humans have an intense desire to avoid pain, no matter how short term, and most will comply with the demands of a torturer to avoid the pain.请问句子里no matter how short term省略了什么成分？
We still truly believe that she is merely a scapegoat and she's innocent as we have already submitted much earlier in the day was the fact that there was no direct evidence that she applied anything on him.请问老师蓝字部分怎么划分成分。submitted much 的much怎么理解呢，...
老师早上好呀！想请教您，关于句子Every precaution was taken against the failure of the plan.这个句子中的“the failure of the plan”为什么是主语补足语呢？我把这个句子变形为We take every precaution against the failure of a plan.在这个句子中“ the failu...
Once our friends stopped and stared into a shop window, upon which Holmes did the same. 这里的upon which Holmes did the same - 福尔摩斯也学着他们的样儿（=也那样做了）。请教老师，1）这里的介词 upon = on 是 “关于“ 的意思吗？2）可以转换成...
He would be a rash man, who should venture to forecast the results of this event.书上说这里的who should...相当于if he should...意思，表示条件。那么，是否意味着这句话是虚拟语气呢？ 即, if he should venture to...
when I boarded the train, I could not help noticing that a great many local people get on as well.请问老师这里的when是副词引导从句还是两个并列句呢，如何区分when在这两种用法呢如果是从句的话，能否省略为 （When） boarding the train , I ...，这里的whe...