...onists speculated that a "lake effect" may have caused the birds to mistake the sprawling solar farms for bodies of water. (www.latimes.com—Can solar farms and wild places coexist in the American West? 2020/06/02)个人感觉这里的may have caused更像是站在过去的立场对过去...
句1：Smart people are better able to admit when they don't know something.句中when引导的是什么从句？如果“when they don't know something”是时间状语从句，那么admit作为及物动词，后面没有宾语。如果“when they don't know something”是宾语从句，那么...
...an affidavit from Kevin Miller swearing that you conspired
with Sean Chill to get him and Mike out of prison.翻以前的贴子，刘老师认为swear这里是静态动词，表示发誓，因此swearing作后置定语不表示进行。我的疑问是：swear表示发誓为什么是静态动词呢...
经济学人里的句子，请问第二句话的语法是不是有问题？But in 2012 the KNU signed a truce with the army.It later joined the peace process, progress on which has been touted by Aung San Suu Kyi as her priority since she became Myanmar’s de facto leader in 2015.
题目：You should open an account at the online bank first, after _______ you can buy anything online. Let's check it out online.答案：which我想问的是 after 能不能当做连词看，如果能，是不是可以填 that？如果不能，请老师给以指导，谢谢！
And the three of them walked off in a whispery little group. It was the yuckiest feeling in the world.in a whispery little group是什么意思？yuckiest是形容词的最高级吗？in the world 是什么意思？
The problem is that catalysts and membranes have been expensive until recently.请问这里catalysts and membranes是最近才开始变贵，还是从以前到最近一直都是这么贵，还是说以前一直贵，但最近不贵了？还请教 until recently 是否有多种不同的用法？
...个句子：One day when entering your home, your mother says your family is having dinner with the family of one of her old friends. “when”是引导的定语从句修饰“day”？还是one day是后面这个状语从句里的，为了强调提前了？谢谢老师。
1.In fact,people are always the ones who mostly concern about the world peace.2.This is a novel concerned peasant life after reform.如第一句中为什么用concern是错的，而用 are concerned？（关心为什么需要被动？）第二句中我用concerned正确吗？