The train was supposed to arrive an hour ago.The train was supposed to have arrived an hour ago.请教老师，这两句话的an hour ago 指的都是现在说话时的一小时前吧？它们可否解释为suppose时的一小时前？
Nothing is more certain than that every trace of Hilter's
footsteps,every stain of his infected and corroding fingers, will be sponged
and purged and, if need be, blasted from the surface of the earth.请教that的作用和成分，是引导主语从句吗？
They included two individuals caught
posing as firefighters and entering properties.句子摘自《What's the latest
on the Los Angeles wildfires and what caused them?》 请教曹老师，过去分词短语caught posing as
firefighters and entering properties作何成分？其中，posing… …
p...
我看到一家政府网站的宣传语上写道：听百姓心声，树政府形象Tree image of the government to listen to voices of the people其中英文翻译中出现的 Tree image 似应写为 Project an image 或 Make an image。我的看法是否对？
He had a less than favorable view of the matter.这里的less than的词义是含有轻微否定的含义的副词短语 表示“并不是太……”的意思吗？如：The job was less than perfect. 这份工作并不是太完美。那这句话为什么网上是翻译的是 他对那种事...
Among economic theories, thetheory that demand____ supply is the most basic one.A. determines B. defines 答案给的是A,为什么不能是B?determines supply 是什么意思呢？ 前面名词已经复数了后面怎么还带个名词？
The aim of the cartoon is to illustrate that instead of little value or being outdated , culture xxxxxxx .这里 instead 并列的是 of little value 和 being outdated 的吧？（一开始以为是 instead of 并列 little value和 being outdated 但觉得不对）instead 和 instead of 的区别...
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？
老师请看例句：He is geared up to play the match.与He is gearing up for the holiday.在这两个句子中 gear up做短语动词，那后面的不定式与介词短语是否可以看作状语？另外 gear up是否可以做不及物的词组使用呢？例如用于祈使...