they have an incentive to use their innovations to improve their own services, rather than renting or selling them to rivals，这里renting or rolling 前面是 省略了 they are 吗？有这种用法吗？
看到以前有网友提问：From then on, I ____ tothe forest four times a year A.had gone B.have gone C.went D.will go 选的c，当然c肯定是对的，但我有别的疑问I have called him three times this morning 这句是语法书里看到的。我的理...
...段摘自2020年高考天津卷的阅读理解(A)：Start a business
using the help of your local library. If you want to have a
business of your own, your local library can become a launch space for it. In library books and computers, you can find
information on starting a business. Many libraries ...
One reason why it is hard to design and teach such courses is thatthey can cut across the insistence by top American universities that liberal-arts educations and professional education should be kept separate, taught in different schools. 这里为什用by短语作后置定语，我感觉应该...
... and so on, can be achieved by a brief period lying, or even sitting down. The body's tissues are self-repairing and self-restoring to a degree, and function best when more or less continuously active.参考译文：“休息”，从使肌肉得到放松等方面来看，只要稍微躺一躺，甚...
...t an honour ( )
A. to be invited to make a speech here.
B. to be invited making a speech here.
答案是A，不定式和动名词不是可以互换吗？
feel是系动词还是行为动词？
to make或者making在此做的是补语...
...sp;这个例句是您回答一位网友的，学生拿来用一下~Indeed, the most striking thing about the students to Lexington—in effect, a visitor from the 1990s—was how frank and unembarrassable they seemed. 【翻译】事实上，去莱克星顿的学生们——实际上都是90年...
Our noses are capable of detecting human smells even when these are diluted to far below one part in one million. 请问to far below one part in one million 中的 far below 是复合介词吗?可是介词to后面一般不是不能跟介词吗？
...想问一下这句话When you think how easy and cheap, relatively, it is to buy a bunch of carrots or beets, why raise them? 这句话it is to buy。。。是主语从句吗，it做形式主语，它是不是省略了too cheap,原句应该是，IT is cheap to buy?我这样说合理吗？谢谢曾...
She had wakened with a slight fever, just bothersome enough to keep her home from her job in a war plant.just bothersome enough to keep her home from her job in a war plant做主语的补语，那么to keep her home from her job in a war plant是做enough的补语吗？
...老师在讲到work的发音时，从w发音到or的发音时，说：So, the lips go from being really rounded to being a little less rounded, but still flared.我记得有老师说过，形容词前加being, 表示主语刻意为之，暂时的状态，并说主语平时不是这样的。（参考...
...中所给单词的适当形式：____________（combine) techniques from the world of theater with traditional
therapeutic methods, drama therapy has proven beneficial to people of different
ages.此处的正确答案是 Combining。我的问题是：为什么此处不能填 Combined?当采用现在...