...rank will return the book if he has finished reading it.2.The project will not start until all the
preparations have been made.请问这两个句子为什么填完成时，尤其不懂第一个，虽然书上说在条件句里现在完成时可以替换将来完成时，但是不清楚为什么用...
...essional 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.
请问这句话中的first by national journals in the ...
Many of the hotels featured in the brochure offer special deals for weekend breaks.该句为何用in不用by.查过字典，feature在表示“以……为特点”时为及物动词，the brochure features the hotels.改成被动the hotels are featured by the brochure.所以原句是不是应该用...
An experiment was conducted from November 2018 to October 2020 in Korla
in Xinjiang, China that included two kinds of saline-alkali farmland.这个句子是一个期刊文章中的句子，我觉得是不是错了，改为：An experiment was conducted from November 2018 to October 2020 in Korla
in ...
...下您，这个词的用法不知怎样掌握1,you will find potatoes over there,这是对话中的，potatoes前不用加the吗2，today we're going to have real English food和这句i want to cook something really English。之前有老师回答，really我认为要改为real，老师说是副...
T：Detroit Innovate will invest much larger amounts in deals than First Step did. What are its criteria?A：We are looking at enabling technologies in health care, transportation, advanced manufacturing and resource efficiency. Typically, we’ll invest between $200,000 and 300,000 in fundrai...
Although he can somehow present challenges for me,I don't know if he could have presented the challenge for me to continue on to this season.could have presented在这里是什么时态？如果换成can have presented呢？
B：Well, you should have put details of your market research spending and the interest you will have to pay on the bank loan.A：Great thinking, Sally. I forgot those important items.对话A里的forgot，这里为什么用过去时态，而不是用一般现在时态？
The tax penalty can be imposed on the use of some disposable products,including plastic bags,thereby encouraging people to use eco-friendly alternatives.我想问下，这两处分词的逻辑主语分别是什么，是做状语还是同位语.望老师指点！
请问老师，The monkey was hanging head downwards from the branch. 和 She was lying face downwards on the grass.这两个句子中 head downwards 和 face downwards 是作什么成分？这里没法理解成独立主格，难道是伴随状语么？
...have never been to Paris,
but it's the place____.A. I most want to visitB. in which I would like to visit答案我知道选A，但是老师们我有一个疑问。关系代词做介词补语，介词通常前置。然后B选项，如果把介词后置，which I would like to visit
in，这个句子w...