It was reneging on a longstanding commitment to abide by the strict
regulations.（它违背了遵守严格规定的长期承诺。）请问这个句子中的不定式为什么就处理成定语呢？感觉处理成状语意思上也通得过：它为了遵守严格的规定而违背了长期承诺...
...有点迷惑，请指教！
1. He had travelled only seven
miles across the Channel when his engine failed .......
2. A week before, he had completed a successful overland flight during
which he covered twenty-six miles.
3. His great flight lasted thirty-seven
minutes.
以上3句话里，黑体...
I am to buy a house. 是不是等于 I am going to buy a house.I am to write a note. 是不是等于 I am going to write a note.请问，老师，am to 是什么结构，还有与它相似的结构吗？有 are to，is to, was to..等？
The pain in her foot wasn’t such as to stop her walking.她脚疼，但还不至于不能行走。这个句子中的 such as to do sth 是用作表语吧？请问除此之外，such as to do sth还可以用作哪些成分？另外，请专家老师具体介绍一下such as to do sth的用法，谢...
...子：If you have been introduced earlier to someone, do not assume that the person would remember you and be prepared to reintroduce yourself should it be necessary. 从“have been introduced”和“do not assume”和“be prepared”来看，这句话讲的是现在的情况，因此用了现...
In the past year, however, software companies have developed tools that allow companies to "push" information directly out to consumers, transmitting marketing messages directly to targeted customers.然而，去年软件公司开发出新的技术，使得公司可以将信息直接...
_____her mother started to go to the cooking class.A. It was at about this time thatB. That was about this timeC. It was at about this time whenD. It was about this time that这个题是选A 还是C呢，A 是强调句，应该是没什么问题；但是C选项就是成了一个定语从句。给的...
...到一句话Group studying typically involves anywhere from one to four other people that will studying either the same, or different, material that you are. 请问老师这里will后面为什么会直接接studying，这里studying是做动词的ing形式而不是动名词吧，我能想到唯一...