我找到两种说法，一是时态不变,例句：Scientists discovered that DNA holds the code for life.一是时态可变可不变，例句Copernicus proved that the earth goes/went round the sun.请问如何理解这两个句子？
...Trump's denunciation of the press and the judicial system and penchant for unilateral executive action tend to reinforce,have not subsided.此处的which指代的是前面的名词短语，并在从句中做宾语吗？2.The landslide presidential election of Jair Bolsonaro,often referred to as ...
...esult has been to make entrance to professional geological journals harder for amateurs, a result that has been reinforced by the widespread introduction of refereeing, first by national journals in the 19th century and then by several local geological journals in the 20th century. 请问这句...
...，提前了，但是我感觉正常语序的话是不是缺少了个介词for,而且for如果放句首应该是不可以省略的第二种：该分句由 eight hours' seeing the same film over and over again in a cinema 变化来的，这样看清楚一点，和第一个分句结构类似...
...ey had received pleasure from
the society of a man in any other colour. As fortheir mother, Mr. Collins's
letter had done away much of her ill-will, and she was preparing to see him with
a degree of composure which astonished her husband and daughters.Mr.
Collins was punctual to his time, and was r...
Gross MarginGross margin is the percentage difference between what a product sells for in the market and what it costs to produce that product.what it costs为什么不写成how much it costs?
But he (the writer) has his reward, for he is trusted and convinces, as those who are at the mercy of their own eloquence do not.请问老师这句话中的as引导什么从句？该如何翻译
The letter took me all morning to write.可以改为it作主语的句式：It took me all morning to write the letter.下面这些句子也可以这么改吗：This decision is for you to make.The car cost $1000 to repair.The dispute needed / required a great deal of tact to resolve.
FOR AN UPBEAT commentary
on America’s telecoms market speak to Jonathan Chaplin of New Street
Research, a boutique firm of financial analysts. He extols the virtues
of the industry, at least compared with its “boring as hell” European
counterpart. He relishes the returns and cash that it g...
Effectively, these layers of words formed a watermark, forthey were just an impression against the wall, a pale hint of green or sometimes purple the only sign that once they might have been raised letters. 1、 a pale hint of green or sometimes purple 是不是对 impression 的补...
Real disposable income probably rose as its fastest rate for two decades in 2020, a measure of the huge stimulus pumped into the economy by the federal government.请问这个长难句如何分析？是什么类型的复合句？该如何分析？
The
man has been with the company for 30 years,but the management has now decided
to______ with his services.A.dispense
B.disuse C.dismiss请教一下老师，为什么这道题选dispense分配，而不是选disuse停止使用或dismiss不考虑呢？