The millions of calculations involved, had they been done by hand, ______ all practical value by the time they were finished.A. had lost B. would have lost C. would lose D. should have lost请问：应该选哪个？ had...
...我来讲讲这篇文章的主要重点。The
focus of recent research hasbeen on environmental issues. 最近研究的重点是环境问题。Because
of his strange clothes, he immediately became the focus of attention when he
entered the office. 他由于服装奇特，一走进办公室便成了...
...词时，表示地点可用where，表示时间可用when。例如：1. It was Shanghai where
our Party was founded.2. lt was July,1921 when
our Party was founded.按照薄冰老师的上述内容可知，他将两个句子均视为强调句，所强调部分应该分别是in Shanghai和in July,1921...
跪求！！速求！！英语句子：commercial means involving or relating to the buying and selling of goods.1.involving和relating都有设计关于的意思，为什么重复使用相同词义的单词并用or相连接？2.relating后面的to是relating独自拥有还是和involving共有？3....
At the edge of the fields, rising in dramatic hills or stretching flat to the horizon, lay the brown barren deserts.lay the brown barren deserts发生倒装，是因为At the edge of the fields置于句首吗?如果这句话按照正常的语序是不是 The brown barren deserts lay at the edge of t...
...er and allowed one of the men to stand on his head, something he’d never been trained to do. 参考译文：奥基（鲸）显然看出了问题，它游到担架下，让其中一人站在它头上。 这种事从来没有训练它做过。 请问老师，1) Apparently sizing up t...
...er and allowed one of the men to stand on his head, something he’d never been trained to do. 参考译文：奥基（鲸）显然看出了问题，它游到担架下，让其中一人站在它头上。 这种事从来没有训练它做过。 请问老师，1) Apparently sizing up t...
...体：to be doing； 完成体：to have done, 完成进行体：to have been doing被动语态、体的变化：一般体：to be done；进行体：???；完成体：to have been done, 完成进行体：???不定式被动语态进行体、不定式被动语态完成进行体应该是怎样？还...
Students who earn a cumulative grade point average of 3.7 or more will be graduated with highest honors.（这是一句在英语单词书上的例句）
我可以把“定冠词”the 加在students前面吗？因为我觉得who earn a cumulative grade point average of 3.7 or more，已...
The economic situation is as serious as was expected.The economic situation is serious, as was expected.请问老师，这两句话有什么区别？第一个句子是否可以理解为：The economic situation is as serious as the economic was expected to be.第二个句子中的as从句被书上...
When the month was up at last, I had a million dollars to my credit in the London and County Bank, and Hastings was fixed in the same way.一个月时间最后结束时，我在伦敦国民银行的账户上已经有了一百万美元的存款，黑斯廷斯也存入了同样的数额。1）上文...
People were panicking when war was threatened against their country.此例句未什么是was threatened呢？是被动语态吗？按照理解不应该是war threatened。against在其中起到了什么作用呢？望各位老师详细解析一下，谢谢